What are some good datasets for Data Science and Machine Learning? - A dataset is a collection of data, usually presented in tabular form. Good datasets for Data Science and Machine Learning are typically those that are well-structured (easy to read and understand) and large enough to provide enough data points to train a model. The best datasets are often those that are open and freely available - such as the popular Iris dataset. However, there are also many commercial datasets available for purchase. In general, good datasets for Data Science and Machine Learning should be: - Well-structured - Large enough to provide enough data points - Open and freely available whenever possible
What is the single most influential book every Programmers should read - As a programmer, you are constantly learning new technologies and skills. But what is the one book that you should read to help you become a better programmer? That's a tough question, but we're here to help. Keep reading to find out the most influential book for programmers.
What are popular hobbies among Software Engineers? - Software engineers are a unique bunch. They're passionate about their work and love to spend their free time tinkering with code. But what are they like outside of work? What are some of their favorite hobbies? We took a look at some popular pastimes among software engineers and compiled a list for you. Check it out!
Programming Languages used for Autopilot in Self Driving Cars like Tesla, Audi, BMW, Mercedes Benz, Volvo, Infiniti - Most self-driving cars on the market today use C programming language for their vehicle software. This is because C is a very robust and stable language that can be trusted for mission-critical applications. In addition, C is relatively easy to learn and has a wide range of features that make it well suited for automotive applications. However, there are some drawbacks to using C for self-driving cars. First, it is not a very concise language, so the code can be quite long and difficult to read. Second, C does not have built-in support for object-oriented programming, which is becoming increasingly important in the world of autonomous vehicles. As a result, many carmakers are starting to explore other languages for their autopilot systems, such as Java and Python.
Google interview questions for various roles and How to Ace the Google Software Engineering Interview? - Google is one of the most sought-after employers in the world, known for their cutting-edge technology and innovative products. If you're lucky enough to land an interview with Google, you can expect to be asked some challenging questions. Google is known for their brainteasers and algorithmic questions, so it's important to brush up on your coding skills before the interview. However, Google also values creativity and out-of-the-box thinking, so don't be afraid to think outside the box when answering questions. product managers need to be able to think strategically about Google's products, while software engineers will need to demonstrate their technical expertise. No matter what role you're interviewing for, remember to stay calm and confident, and you'll be sure to ace the Google interview.
What are the pros and cons of working as a software engineer for Google or Microsoft versus starting your own startup like Zoom or Uber or Airbnb did when they started out? - Google and Microsoft are two of the most well-known and successful companies in the tech industry. They are both known for their cutting-edge products and their strong work culture. There are also some major differences between working at Google or Microsoft versus starting your own startup. Google and Microsoft are both very large companies, with hundreds of thousands of employees. They are also both very well established, with years of experience in the tech industry. Startups, on the other hand, are much smaller and less established. This can be both good and bad.
What is the Top Job in AI? Data Scientist or Machine Learning Engineer? - A data scientist is someone who creates programming code and combines it with statistical knowledge to create insights from data. Machine learning (ML) is a field of inquiry devoted to understanding and building methods that 'learn', that is, methods that leverage data to improve performance on some set of tasks. The top job in all of AI is the machine learning engineer and NOT the data scientist.
Will software engineers ever stop being in demand? - , A software engineer is a person who applies the principles of software engineering to design, develop, maintain, test, and evaluate computer software. The term programmer is sometimes used as a synonym, but may also lack connotations of engineering education or skills. The question is "Will software engineers ever stop being in demand?" There are two schools of thought. Those with a background in business see developers as commodities and fully believe that programmers will program themselves out of a job field. The idea is that in some distant future, jobs like project manager, product manager, and marketing manager will still be critical but programmers themselves will be extinct as a result of the tools they created.
Requirements For Access to Electronics For Kids During Vacation - We are living in a world where electronics are accessible easily and makes it very easy for our kids to get addicted to. It is important to create some boundaries to allow our kids to not get addicted to electronics and at the same time give them some access.
Is it better economically to run a car into the ground before buying a new one? Data driven answer - Is it better to drive your car into the ground before buying a new one? You might think that’s an odd question, but there’s some logic to it. We all know cars are expensive, and many people feel they have to buy a new one as soon as theirs starts to show its age. But is that really the best way to go? Let’s take a closer look at the numbers. The advice I’ve always had (and followed) is that you should always EITHER: Buy a new car - keep it for 3 years - then trade it for a new one….OR… Buy a new car and keep it until it goes to the car crusher.
Is it good useful meaningful worthwhile to use register variables in C++? - The register keyword has been largely ignored by compilers for decades. In C, it prevents you from taking the address of a variable. But otherwise, most compilers ignore the hint it offers.
Techies and Geek Inspired Movies and TV Shows – Netflix Amazon Prime Video HBO YouTube TV - If you're a movie buff or a geek, there's no doubt you love spending your free time watching films and TV shows that inspire your passions. And in the age of Netflix, Amazon Prime Video, and HBO, there's no shortage of inspiring content to watch. This blog post takes a look at some of the best geeky and tech-inspired movies and TV shows available on streaming services today. So whether you're a die-hard Star Wars fan or you can't get enough of Andy Griffith reruns, there's something for everyone in this roundup! As a software engineer who works long hours and go to kids activities after work, TV shows and movies help me relax after work. This blog is an aggregate of trailers, questions and answers about of Geek inspired Movies and TV Shows.
What are some coding anti-patterns that can easily slip through code reviews? - What are some coding anti-patterns that can easily slip through code reviews?
Algorithm and Tricks to save up to 30 cents per litre on Gas in USA and Canada - Gas is getting very expensive and we are trying to help consumers save on Gas by providing you daily tricks to help you savc up to 30 cents per litre on Gas in USA and Canada.
What is the tech stack behind Google Search Engine? - The technology stack that powers the Google Search Engine is immensely complex, and includes a number of sophisticated algorithms, technologies, and infrastructure components. At the heart of the system is the PageRank algorithm, which ranks pages based on a number of factors, including the number and quality of links to the page. The algorithm is constantly being refined and updated, in order to deliver more relevant and accurate results. In addition to the PageRank algorithm, Google also uses a number of other algorithms, including the Latent Semantic Indexing algorithm, which helps to index and retrieve documents based on their meaning. The search engine also makes use of a massive infrastructure, which includes hundreds of thousands of servers around the world.
Financial Independence and Legit Side Money Ideas For Techies and Geeks - This blog is about Clever Questions, Answers, Posts, discussions, links about:: Financial Independence (FIRE), NFTs, options, entrepreneurship, legit side hustle, money making ideas, money making from home, bier money, make money from web scraping,
CyberSecurity – What are some things that get a bad rap, but are actually quite secure? - CyberSecurity - What are some things that get a bad rap, but are actually quite secure? 1- PGP 2- Very long passwords that are actually a sentence
Programming, Coding and Algorithms Questions and Answers - Coding is a complex process that requires precision and attention to detail. While there are many resources available to help learn programming, it is important to avoid making some common mistakes. One mistake is assuming that programming is easy and does not require any prior knowledge or experience. This can lead to frustration and discouragement when coding errors occur. Another mistake is trying to learn too much at once. Coding is a vast field with many different languages and concepts. It is important to focus on one area at a time and slowly build up skills. Finally, another mistake is not practicing regularly. Coding is like any other skill- it takes practice and repetition to improve. By avoiding these mistakes, students will be well on their way to becoming proficient programmers.
As a web developer can you explain why React is needed? - As a web developer can you explain why React is needed? The specific rationale for React is state management and efficient page updates, it’s underlying power comes not just from the structure and tooling provided by it being a framework, but also the shadow-DOM and component lifecycle that along with state management empower greater interactivity without very slow inefficient page updates.
Why can’t a macOS be installed in a Windows computer? - Why can’t a macOS be installed in a Windows computer? that to happen. Not because they want to extract more money from hardware sales (Apple hardware is actually cheap for the quality you get anyway), not because they wouldn’t sell OS X as a product if they could.
How does a database handle pagination? - How does a database handle pagination? Some database languages provide helpful facilities that aide in implementing pagination. For example, many SQL dialects provide LIMIT and OFFSET clauses that can be used to emit up to n rows starting at a given row number. I.e., a “page” of rows. If the query results are sorted via ORDER BY and are generally unchanged between successive invocations, then that can be used to implement pagination.
How many spaces is a tab in Java, Rust, C++, Python, C#, Powershell, Golang, Javascript - How many spaces is a tab in Java, Rust, C++, Python, C#, Powershell, Golang, Javascript
Tech Jobs and Career at FAANG (now MAANGM): Facebook Meta Amazon Apple Netflix Google Microsoft - The FAANG companies (Facebook, Amazon, Apple, Netflix, Google, and Microsoft) are some of the most sought-after employers in the tech industry. They offer competitive salaries and benefits, and their employees are at the forefront of innovation. This blog is about Clever Questions, Answers, Resources, Feeds, Discussions about Tech jobs and careers at MAANGM companies including: Amazon AWS Netflix Google (Alphabet) Microsoft
AWS Azure Google Cloud Certifications Testimonials and Dumps - Do you want to become a Professional DevOps Engineer, a cloud Solutions Architect, a Cloud Engineer or a modern Developer or IT Professional, a versatile Product Manager, a hip Project Manager? Therefore Cloud skills and certifications can be just the thing you need to make the move into cloud or to level up and advance your career.
Food For Thought – Delicious Homemade Cuisine From All over the World - Food For Thought - Delicious Homemade Cuisine From All over the World. Who doesn't remember their favourite food from home when they were growing up? That delicious taste stays with us forever. We can move all over the World, but the thought of our favourite home-cooked meals always make us happy.
Breaking News – Top Stories - Breaking News, Top Stories, Google Trends, updated hourly
Facebook, Instagram, Apple and Google Apps Search Ads Secrets – Make Money From Your Products - There are billions of Apps out there and it is becoming harder and harder to stand out. You don't want to spend countless of hours developing your dream app just to have less than 10 downloads per month. This blog is an aggregate of the best secrets of Apple and Google Apps search ads for successful App developers.
Azure Solutions Architect Expert Certification Questions And Answers Dumps - Top 50 Azure Solutions Architect Expert Certification Questions And Answers Dumps
Top 100 Data Science and Data Analytics and Data Engineering Interview Questions and Answers - Top 100 Data Science and Data Analytics Interview Questions and Answers Data Science is a blend of various tools, algorithms, and machine learning principles with the goal to discover hidden patterns from the raw data. How is this different from what statisticians have been doing for years? The answer lies in the difference between explaining and predicting: statisticians work a posteriori, explaining the results and designing a plan; data scientists use historical data to make predictions.
Machine Learning Engineer Interview Questions and Answers - Machine Learning Engineer Interview Questions and Answers: Machine learning is the study of computer algorithms that improve automatically through experience. It is seen as a subset of artificial intelligence. Machine Learning explores the study and construction of algorithms that can learn from and make predictions on data. You select a model to train and then manually perform feature extraction. Used to devise complex models and algorithms that lend themselves to a prediction which in commercial use is known as predictive analytics.
DevOps Interviews Question and Answers and Scripts - DevOps Interviews Question and Answers and Scripts
10 Commandments of Options Trading Strategies - Option strategies are the simultaneous, and often mixed, buying or selling of one or more options that differ in one or more of the options' variables. Call options, simply known as calls, give the buyer a right to buy a particular stock at that option's strike price. Conversely, put options, simply known as puts, give the buyer the right to sell a particular stock at the option's strike price. This is often done to gain exposure to a specific type of opportunity or risk while eliminating other risks as part of a trading strategy. A very straightforward strategy might simply be the buying or selling of a single option; however, option strategies often refer to a combination of simultaneous buying and or selling of options.
How crypto could change the world and Why Cryptocurrency was invented in the first place. - People used to pay each other in gold and silver. Difficult to transport. Difficult to divide. Paper money was invented. A claim to gold in a bank vault. Easier to transport and divide. Banks gave out more paper money than they had gold in the vault. They ran “fractional reserves”. A real money maker. But every now and then, banks collapsed because of runs on the bank.
Data Sciences – Top 400 Open Datasets – Data Visualization – Data Analytics – Big Data – Data Lakes - Data science is an interdisciplinary field that uses scientific methods, processes, algorithms and systems to extract knowledge and insights from structured and unstructured data, and apply knowledge and actionable insights from data across a broad range of application domains. In this blog, we are going to provide popular open source data sets, data visualization, data analytics and data lakes.
Djamgatech: Multilingual and Platform Independent Cloud Certification and Education App for AWS, Azure, Google Cloud - You can translate the content of this page by selecting a language in the select box. The Cloud Education Certification App is an EduFlix App for AWS, Azure, Google Cloud Certification Prep [Android, iOS] Technology is changing and is moving towards the cloud. The cloud will power most businesses in the coming years and is not taught in schools. …
Jobs, Career, Salary, Total Compensation, Interview Tips at FAANGM: Facebook, Apple, Amazon, Netflix, Google, Microsoft - Jobs, Career, Salary, Total Compensation, Interview Tips at FAANGM: Facebook, Apple, Amazon, Netflix, Google, Microsoft
Electric Cars – Autonomous Cars – Self driving cars : Tesla, CyberTruck, EV, Volt, Wayne, Nissan Leaf, Electric Bikes, e-bikes, i-cars, smart cars - BNEF outlines that electric vehicles (EVs) will hit 10% of global passenger vehicle sales in 2025, with that number rising to 28% in 2030 and 58% in 2040. According to the study, EVs currently make up 3% of global car sales.
Microsoft Azure Administrator Certification Questions and Answers Dumps – AZ 104 - The Microsoft Certified: Azure Administrator Associate Average Salary — $125,993. Below are the top 100 Microsoft Azure Administrator Certification Questions and Answers Dumps
Videoconferencing Tools: Zoom vs Microsoft Teams vs Google Meet vs GoToMeeting vs WebEx vs Slack – making the right choice - Videoconferencing Tools: Zoom vs Teams vs Google Meet vs GoToMeeting vs Webex vs Slack
Top 50 Google Certified Cloud Professional Architect Exam Questions and Answers Dumps - Top 50 Google Certified Cloud Professional Architect Exam Questions and Answers Dumps
List of the most commonly recurring words in Video Game Titles – Mobile Game Name Generator - /u/BDMayhem analyzed 4000 "hardcore" mobile games for Android, and made a list of the most commonly recurring words in the Game Titles.
Google Cloud 101 – Google Associate Cloud Engineer Exam Preparation: Questions and Answers Dumps - This blog includes the top 40 Google Associate Cloud Engineer exam preparation questions and answers dumps, google cloud questions and answers around the web, google cloud latest news, Google Cloud Developer Cheat Sheet, All Google Cloud Services in 4 words or less
AZ-900: Microsoft Azure Fundamentals – Top 100 Questions and Answers Dumps - Azure Fundamentals exam is an opportunity to prove knowledge of cloud concepts (20%), Azure services (20%), Azure workloads, security and privacy in Azure (30%), as well as Azure pricing and support (25%). This blog also includes Azure Services Cheat Sheet. The exam is intended for candidates who are just beginning to work with cloud-based solutions and services or are new to Azure. Candidates should be familiar with the general technology concepts, including concepts of networking, storage, compute, application support, and application development. Azure Fundamentals can be used to prepare for other Azure role-based or specialty certifications, but it is not a prerequisite for any of them.
How to Make Money From Web Scraping - Web scraping can be a very useful skill to learn for anyone looking to start or further their career in data. Web scraping is the process of extracting data from websites, and it can be used to collect everything from images to contact information. While it may sound complicated, web scraping is actually quite simple once you get the hang of it. And best of all, it's a skill that can be used to make money. There are a number of ways to make money from web scraping. One popular way is to use web scraping for sport arbitrage. Sport arbitrage is the practice of betting on two different outcomes of the same event in order to profit from the difference in odds. Web scrapers can be used to quickly and easily find arbitrage opportunities by comparing the odds of different bookmakers.
Machine Learning 101 – Top 100 AWS and Google Certified Machine Learning Specialty Questions and Answers Dumps - Machine Learning 101 - Top 100 AWS Certified Machine Learning Specialty Questions and Answers Dumps
Laptop 101 – Pick a laptop for me – MacOS or Windows or Chrome – Apple MacBook or Google ChromeBook or Microsoft Surface or Dell or HP or Lenovo - Laptop 101 - Pick a laptop for me - MacOS or Windows or Chrome - Apple MacBook or Google ChromeBook or Microsoft Surface or Dell or Hp or Lenovo
What is trending today – What are people searching today? - 3.5 billion Google searches are made every day and 1.2 trillion searches per year worldwide.
Smartphone 101 – Pick a smartphone for me – android or iOS – Apple iPhone or Samsung Galaxy or Huawei or Xaomi or Google Pixel - When it comes to choosing a smartphone, there are a few things you need to take into account. First, what operating system do you prefer? Android or iOS? Then, what brand do you prefer? Apple, Samsung, Huawei, Xiaomi, or Google? Finally, what model of phone do you like best? The iPhone 13 Pro Max, the Galaxy S22 Plus, the Huawei Mate 40 Pro, the Xiaomi Mi 11 Pro 5G, or the Google Pixel 6 Pro?
Loans Debts Mortgages Finances Calculators – Unit and Currency Converters - At some stage, we all need or want more money than we have. Funding a new set of wheels is the number one reason to take out a personal loan. Perhaps unsurprisingly, men are more likely than women to take out a personal loan. According to our survey, 69.05% of men said they’ve taken out a loan compared to 62.09% of women.what to expect when taking out a loan? what is the total cost of a loan? Use these calculators below to find out.
CyberSecurity 101 and Top 25 AWS Certified Security Specialty Questions and Answers Dumps - Top 25 AWS Certified Specialty Exam Practice Quiz including Questions and Answers and References.
Big Data and Data Analytics 101 – Top 50 AWS Certified Data Analytics – Specialty Questions and Answers Dumps - Top 20 AWS Certified Data Analytics – Specialty Questions and Answers Dumps and References
Networking 101 and Top 20 AWS Certified Advanced Networking Specialty Questions and Answers Dumps - You can translate the content of this page by selecting a language in the select box. The AWS Certified Advanced Networking – Specialty (ANS-C00) examination is intended for individuals who perform complex networking tasks. This examination validates advanced technical skills and experience in designing and implementing AWS and hybrid IT network architectures at scale. The …
Top 200 AWS Certified Associate SysOps Administrator Practice Quiz – Questions and Answers Dumps - You can translate the content of this page by selecting a language in the select box. What is the AWS Certified SysOps Administrator – Associate? The AWS Certified SysOps Administrator – Associate (SOA-C01) examination is intended for individuals who have technical expertise in deployment, management, and operations on AWS. The AWS Certified SysOps Administrator – …
RPA: How to reset Blue Prism admin password - You can translate the content of this page by selecting a language in the select box. Robotic Process Automation: Blue Prism v6 Issue: BluePrism admin Password forgotten or lost Assumption – you have access to the database and you can modify tables Solution: This command finds the user with the username admin and resets their …
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Top 30 AWS Certified Developer Associate Exam Tips - You can translate the content of this page by selecting a language in the select box. Top 30 AWS Certified Developer Associate Exam Tips AWS Certified Developer Associate Exam Prep Urls Get the free app at: android: https://play.google.com/store/apps/details?id=com.awscertdevassociateexampreppro.enoumen iOs: https://apps.apple.com/ca/app/aws-certified-developer-assoc/id1511211095 PRO version with mock exam android: https://play.google.com/store/apps/details?id=com.awscertdevassociateexampreppro.enoumen PRO version with mock exam ios: https://apps.apple.com/ca/app/aws-certified-dev-ass-dva-c01/id1506519319t 0 …
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Top 60 AWS Solution Architect Associate Exam Tips - Top 60 AWS Solution Architect Associate Exam Tips
AWS certification exam quiz apps for all platforms - You can translate the content of this page by selecting a language in the select box. Below is a listing of AWS certification exam quiz apps for all platforms: AWS Certified Cloud practitioner Exam Prep FREE version: CCP, CLF-C01 IOS: https://apps.apple.com/ca/app/aws-certified-cloud-pract-prep/id1488832117 Microsoft/Windows10:https://www.microsoft.com/en-ca/p/aws-certified-cloud-practitioner-exam-preparation/9ns1xttj1d5s Google play: https://play.google.com/store/apps/details?id=com.awscloudpractitonerexamprep.enoumen Amazon App Store (Android): https://www.amazon.com/dp/B085MFT53J/ref=mp_s_a_1_2?keywords=cloud+practitioner&qid=1583633225&s=mobile-apps&sr=1-2 Web/PWA: https://aws-cloud-practitioner-exam.firebaseapp.com Cloud Practitioner PRO …
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What are some common reasons why a blog doesn’t rank on Google? - You can translate the content of this page by selecting a language in the select box. Any content destined to the public that doesn’t rank on Google or Bing is destined to be obscure and gets no visibility. Writing any blog post or article is not enough to be ranked on Google or Bing, the …
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- What are some financial software products that do not require you to store data in the cloud? - You can translate the content of this page by selecting a language in the select box. For privacy sake, it is very important for a lot of people to not trust cloud providers with their financial data. Below are some free desktop financial software products that do not require you to store data in the …
What are the corresponding Azure and Google Cloud services for each of the AWS services? - What are unique distinctions and similarities between AWS, Azure and Google Cloud services? For each AWS service, what is the equivalent Azure and Google Cloud service? For each Azure service, what is the corresponding Google Service? AWS Services vs Azure vs Google Services? Side by side comparison between AWS, Google Cloud and Azure Service?
Pros and Cons of Cloud Computing - What are the Pros of using cloud computing? What are characteristics of cloud computing? Trade Capital expense for variable expense Benefit from massive economies of scale Stop guessing capacity Increase speed and agility Stop spending money on running and maintaining data centers Go global in minutes
Cloud User insurance and Cloud Provider Insurance - You can translate the content of this page by selecting a language in the select box. In this blog, we are going to explore the following topics and provide some suggestions and recommendations: What is Cloud User insurance and Cloud Provider Insurance How protected are you when using the cloud? How protected are the cloud …
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What are good competitors to G-Suite? - You can translate the content of this page by selecting a language in the select box. Office 365 comes to mind. Office 365 is a line of subscription services offered by Microsoft as part of the Microsoft Office product line. The brand encompasses plans that allow use of the Microsoft Office software suite over the life of the subscription, as well as cloud-based …
What are the top 10 biggest lessons you have learned from the corporate world? - You can translate the content of this page by selecting a language in the select box. According to Wikipedia, Corporate America is an informal (and sometimes derogatory) phrase describing the world of corporations and big business within the United States and Canada. A job or career in corporate America is usually the best entry to true middle class or even …
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How does using a VPN or Proxy or TOR or private browsing protects your online activity? - You can translate the content of this page by selecting a language in the select box. VPNs are used to provide remote corporate employees, gig economy freelance workers and business travelers with access to software applications hosted on proprietary networks. To gain access to a restricted resource through a VPN, the user must be authorized to use …
What is the programming model and best language for Hadoop and Spark? Python or Java? - You can translate the content of this page by selecting a language in the select box. Hadoop is an open-source software framework for storing data and running applications on clusters of commodity hardware. It provides massive storage for any kind of data, enormous processing power and the ability to handle virtually limitless concurrent tasks or …
What is the best app for finding people to join group activity in USA and Canada for free? - You can translate the content of this page by selecting a language in the select box. In this blog, I will help answer this question that i get frequently: What is the best app for finding people to join group activity ? 1- The meetup app is the best. You can join as a member …
Top 10 legal side business that can make you $1000-$2000 a week? - You can translate the content of this page by selecting a language in the select box. Below are the Top 10 legal side business that can make you $1000-$2000 a week. This list is based on my own experience and research. I have tried most of them and it takes dedication and passion to get …
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Top 10 Financial Tips for Young Adults in USA and Canada - You can translate the content of this page by selecting a language in the select box. This blog is geared towards young adults, particularly young first and second generation immigrants like me who don’t have any real estate and assets inherited from their parents here in Canada and USA. In this blog, I will help …
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Free and Effective Internet Marketing in USA and Canada: Top 10 Tips to Sell Online at No Cost - You can translate the content of this page by selecting a language in the select box. Online advertising is the process of promoting a business or brand and its products or services over the internet using tools that help drive traffic, leads, and sales. Internet Marketing, also called online marketing or Internet advertising or web …
Top 100 AWS Solutions Architect Associate Certification Exam Questions and Answers Dump – SAA-C03 - AWS Certified Solutions Architects are responsible for designing, deploying, and managing AWS cloud applications. The AWS Cloud Solutions Architect Associate exam validates an examinee's ability to effectively demonstrate knowledge of how to design and deploy secure and robust applications on AWS technologies. The AWS Solutions Architect Associate training provides an overview of key AWS services, security, architecture, pricing, and support. The AWS Certified Solutions Architect - Associate (SAA-C03) Examination is a required examination for the AWS Certified Solutions Architect - Professional level. Successful completion of this examination can lead to a salary raise or promotion for those in cloud roles.
AWS Certification Preparation: AWS Ec2 Facts, Faqs and Summaries, Top 10 Questions and Answers Dump - Amazon Elastic Compute Cloud (Amazon EC2) is a web service that provides secure, resizable compute capacity in the cloud. It is designed to make web-scale cloud computing easier for developers. Amazon Elastic Compute Cloud (EC2) forms a central part of Amazon.com's cloud-computing platform, Amazon Web Services (AWS), by allowing users to rent virtual computers on which to run their own computer applications.
AWS Certification Preparation: AWS IAM Facts, Faqs, Summaries and Top 10 Questions and Answers Dump - You can translate the content of this page by selecting a language in the select box. AWS IAM Facts and summaries, AWS IAM Top 10 Questions and Answers Dump Definition 1: IAM is a framework of policies and technologies for ensuring that the proper people in an enterprise have the appropriate access to technology resources. …
AWS Certification Exams Prep: Serverless Facts and Summaries and Question and Answers - You can translate the content of this page by selecting a language in the select box. AWS Serverless – Facts and summaries, Top 20 AWS Serverless Questions and Answers Dump Definition 1: Serverless computing is a cloud-computing execution model in which the cloud provider runs the server, and dynamically manages the allocation of machine resources. …
AWS Developer and Deployment Theory: Facts and Summaries and Questions/Answers - You can translate the content of this page by selecting a language in the select box. AWS Developer – Deployment Theory Facts and summaries, Top 80 AWS Developer Theory Questions and Answers Dump Definition 1: The AWS Developer is responsible for designing, deploying, and developing cloud applications on AWS platform Definition 2: The AWS Developer …
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AWS Certification Exam Prep: DynamoDB Facts, Summaries and Questions/Answers. - Amazon DynamoDB explained Fully Managed Fast, consistent Performance Fine-grained access control Flexible AWS DynamoDB Facts and Summaries AWS DynamoDB Questions and Answers Dumps
AWS Certification Exam Prep: S3 Facts, Summaries, Questions and Answers - S3 is a universal namespace, meaning each S3 bucket you create must have a unique name that is not being used by anyone else in the world. S3 is object based: i.e allows you to upload files.Files can be from 0 Bytes to 5 TBS3 has unlimited storage. Files are stored in Buckets. Read after write consistency for PUTS of new Objects Eventual Consistency for overwrite PUTS and DELETES (can take some time to propagate)
2022 AWS Certified Developer Associate Exam Preparation: Questions and Answers Dump - A developer is writing an application that will store data in a DynamoDB table. The ratio of reads operations to write operations will be 1000 to 1, with the same data being accessed frequently. What should the Developer enable on the DynamoDB table to optimize performance and minimize costs?
Top 100 AWS Certified Cloud Practitioner Exam Preparation Questions and Answers Dumps - Top 100 Questions and Answers Dumps, White papers, Courses, Labs and Training Materials, Exam info and details, References, Jobs, Others AWS Certificates, AWS Cloud Support Engineer Job Interview Prep, Top 20 AWS Training Q&A , AWS Web Services Cheat Sheet, Latest Products & Services @ AWS RE:INVENT
What are US or Canadian cities that are safe, have plenty of good unique shopping, are lower in humidity but not ultra low like Nevada, have no natural disasters like tornadoes - You can translate the content of this page by selecting a language in the select box. Safe US and Canadian cities include Calgary, Edmonton, Vancouver and Montreal. All of these cities are lower in humidity than most US cities, have no natural disasters like tornadoes, and offer plenty of unique shopping options. Calgary is especially …
AWS Certified Developer Associate Exam Prep
Welcome to AWS Certified Developer Associate Exam Preparation: Definition and Objectives, Top 65 Questions and Answers dump, White papers, Courses, Labs and Training Materials, Exam info and details, References, Jobs, Others AWS Certificates
What is the AWS Certified Developer Associate Exam?
This AWS Certified Developer-Associate Examination is intended for individuals who perform a
Developer role. It validates an examinee’s ability to:
- Demonstrate an understanding of core AWS services, uses, and basic AWS architecture best practices.
- Demonstrate proficiency in developing, deploying, and debugging cloud-based applications using AWS.
There are no prerequisites for taking the Developer-Associate examination, but here are the recommended AWS Knowledge:
- One or more years of hands-on experience developing and maintaining an AWS based application
- In-depth knowledge of at least one high-level programming language
- Understanding of core AWS services, uses, and basic AWS architecture best practices
- Proficiency in developing, deploying, and debugging cloud-based applications using AWS
- Ability to use the AWS service APIs, AWS CLI, and SDKs to write applications
- Ability to identify key features of AWS services
- Understanding of the AWS shared responsibility model
- Understanding of application lifecycle management
- Ability to use a CI/CD pipeline to deploy applications on AWS
- Ability to use or interact with AWS services
- Ability to apply a basic understanding of cloud-native applications to write code
- Ability to write code using AWS security best practices (e.g., not using secret and access keys in the code, instead using IAM roles)
- Ability to author, maintain, and debug code modules on AWS
- Proficiency writing code for serverless applications
- Understanding of the use of containers in the development process
AWS Certified Developer – Associate Practice Questions And Answers Dump
Q0: Your application reads commands from an SQS queue and sends them to web services hosted by your
partners. When a partner’s endpoint goes down, your application continually returns their commands to the queue. The repeated attempts to deliver these commands use up resources. Commands that can’t be delivered must not be lost.
How can you accommodate the partners’ broken web services without wasting your resources?
- A. Create a delay queue and set DelaySeconds to 30 seconds
- B. Requeue the message with a VisibilityTimeout of 30 seconds.
- C. Create a dead letter queue and set the Maximum Receives to 3.
- D. Requeue the message with a DelaySeconds of 30 seconds.
Top
Q1: A developer is writing an application that will store data in a DynamoDB table. The ratio of reads operations to write operations will be 1000 to 1, with the same data being accessed frequently.
What should the Developer enable on the DynamoDB table to optimize performance and minimize costs?
- A. Amazon DynamoDB auto scaling
- B. Amazon DynamoDB cross-region replication
- C. Amazon DynamoDB Streams
- D. Amazon DynamoDB Accelerator
Top
Q2: You are creating a DynamoDB table with the following attributes:
- PurchaseOrderNumber (partition key)
- CustomerID
- PurchaseDate
- TotalPurchaseValue
One of your applications must retrieve items from the table to calculate the total value of purchases for a
particular customer over a date range. What secondary index do you need to add to the table?
- A. Local secondary index with a partition key of CustomerID and sort key of PurchaseDate; project the
TotalPurchaseValue attribute - B. Local secondary index with a partition key of PurchaseDate and sort key of CustomerID; project the
TotalPurchaseValue attribute - C. Global secondary index with a partition key of CustomerID and sort key of PurchaseDate; project the
TotalPurchaseValue attribute - D. Global secondary index with a partition key of PurchaseDate and sort key of CustomerID; project the
TotalPurchaseValue attribute
Top
Q3: When referencing the remaining time left for a Lambda function to run within the function’s code you would use:
- A. The event object
- B. The timeLeft object
- C. The remains object
- D. The context object
Top
Q4: What two arguments does a Python Lambda handler function require?
- A. invocation, zone
- B. event, zone
- C. invocation, context
- D. event, context
Q5: Lambda allows you to upload code and dependencies for function packages:
- A. Only from a directly uploaded zip file
- B. Only via SFTP
- C. Only from a zip file in AWS S3
- D. From a zip file in AWS S3 or uploaded directly from elsewhere
Q6: A Lambda deployment package contains:
- A. Function code, libraries, and runtime binaries
- B. Only function code
- C. Function code and libraries not included within the runtime
- D. Only libraries not included within the runtime
Q7: You are attempting to SSH into an EC2 instance that is located in a public subnet. However, you are currently receiving a timeout error trying to connect. What could be a possible cause of this connection issue?
- A. The security group associated with the EC2 instance has an inbound rule that allows SSH traffic, but does not have an outbound rule that allows SSH traffic.
- B. The security group associated with the EC2 instance has an inbound rule that allows SSH traffic AND has an outbound rule that explicitly denies SSH traffic.
- C. The security group associated with the EC2 instance has an inbound rule that allows SSH traffic AND the associated NACL has both an inbound and outbound rule that allows SSH traffic.
- D. The security group associated with the EC2 instance does not have an inbound rule that allows SSH traffic AND the associated NACL does not have an outbound rule that allows SSH traffic.
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Q8: You have instances inside private subnets and a properly configured bastion host instance in a public subnet. None of the instances in the private subnets have a public or Elastic IP address. How can you connect an instance in the private subnet to the open internet to download system updates?
- A. Create and assign EIP to each instance
- B. Create and attach a second IGW to the VPC.
- C. Create and utilize a NAT Gateway
- D. Connect to a VPN
Top
Q9: What feature of VPC networking should you utilize if you want to create “elasticity” in your application’s architecture?
- A. Security Groups
- B. Route Tables
- C. Elastic Load Balancer
- D. Auto Scaling
Top
Q10: Lambda allows you to upload code and dependencies for function packages:
- A. Only from a directly uploaded zip file
- B. Only from a directly uploaded zip file
- C. Only from a zip file in AWS S3
- D. From a zip file in AWS S3 or uploaded directly from elsewhere
Q11: You’re writing a script with an AWS SDK that uses the AWS API Actions and want to create AMIs for non-EBS backed AMIs for you. Which API call should occurs in the final process of creating an AMI?
- A. RegisterImage
- B. CreateImage
- C. ami-register-image
- D. ami-create-image
Q12: When dealing with session state in EC2-based applications using Elastic load balancers which option is generally thought of as the best practice for managing user sessions?
- A. Having the ELB distribute traffic to all EC2 instances and then having the instance check a caching solution like ElastiCache running Redis or Memcached for session information
- B. Permenantly assigning users to specific instances and always routing their traffic to those instances
- C. Using Application-generated cookies to tie a user session to a particular instance for the cookie duration
- D. Using Elastic Load Balancer generated cookies to tie a user session to a particular instance
Q13: Which API call would best be used to describe an Amazon Machine Image?
- A. ami-describe-image
- B. ami-describe-images
- C. DescribeImage
- D. DescribeImages
Q14: What is one key difference between an Amazon EBS-backed and an instance-store backed instance?
- A. Autoscaling requires using Amazon EBS-backed instances
- B. Virtual Private Cloud requires EBS backed instances
- C. Amazon EBS-backed instances can be stopped and restarted without losing data
- D. Instance-store backed instances can be stopped and restarted without losing data
Q15: After having created a new Linux instance on Amazon EC2, and downloaded the .pem file (called Toto.pem) you try and SSH into your IP address (54.1.132.33) using the following command.
ssh -i my_key.pem ec2-user@52.2.222.22
However you receive the following error.
@@@@@@@@ WARNING: UNPROTECTED PRIVATE KEY FILE! @ @@@@@@@@@@@@@@@@@@@
What is the most probable reason for this and how can you fix it?
- A. You do not have root access on your terminal and need to use the sudo option for this to work.
- B. You do not have enough permissions to perform the operation.
- C. Your key file is encrypted. You need to use the -u option for unencrypted not the -i option.
- D. Your key file must not be publicly viewable for SSH to work. You need to modify your .pem file to limit permissions.
Q16: You have an EBS root device on /dev/sda1 on one of your EC2 instances. You are having trouble with this particular instance and you need to either Stop/Start, Reboot or Terminate the instance but you do NOT want to lose any data that you have stored on /dev/sda1. However, you are unsure if changing the instance state in any of the aforementioned ways will cause you to lose data stored on the EBS volume. Which of the below statements best describes the effect each change of instance state would have on the data you have stored on /dev/sda1?
- A. Whether you stop/start, reboot or terminate the instance it does not matter because data on an EBS volume is not ephemeral and the data will not be lost regardless of what method is used.
- B. If you stop/start the instance the data will not be lost. However if you either terminate or reboot the instance the data will be lost.
- C. Whether you stop/start, reboot or terminate the instance it does not matter because data on an EBS volume is ephemeral and it will be lost no matter what method is used.
- D. The data will be lost if you terminate the instance, however the data will remain on /dev/sda1 if you reboot or stop/start the instance because data on an EBS volume is not ephemeral.
Q17: EC2 instances are launched from Amazon Machine Images (AMIs). A given public AMI:
- A. Can only be used to launch EC2 instances in the same AWS availability zone as the AMI is stored
- B. Can only be used to launch EC2 instances in the same country as the AMI is stored
- C. Can only be used to launch EC2 instances in the same AWS region as the AMI is stored
- D. Can be used to launch EC2 instances in any AWS region
Q18: Which of the following statements is true about the Elastic File System (EFS)?
- A. EFS can scale out to meet capacity requirements and scale back down when no longer needed
- B. EFS can be used by multiple EC2 instances simultaneously
- C. EFS cannot be used by an instance using EBS
- D. EFS can be configured on an instance before launch just like an IAM role or EBS volumes
Q19: IAM Policies, at a minimum, contain what elements?
- A. ID
- B. Effects
- C. Resources
- D. Sid
- E. Principle
- F. Actions
Q20: What are the main benefits of IAM groups?
- A. The ability to create custom permission policies.
- B. Assigning IAM permission policies to more than one user at a time.
- C. Easier user/policy management.
- D. Allowing EC2 instances to gain access to S3.
Q21: What are benefits of using AWS STS?
- A. Grant access to AWS resources without having to create an IAM identity for them
- B. Since credentials are temporary, you don’t have to rotate or revoke them
- C. Temporary security credentials can be extended indefinitely
- D. Temporary security credentials can be restricted to a specific region
Q22: What should the Developer enable on the DynamoDB table to optimize performance and minimize costs?
- A. Amazon DynamoDB auto scaling
- B. Amazon DynamoDB cross-region replication
- C. Amazon DynamoDB Streams
- D. Amazon DynamoDB Accelerator
Top
Q23: A Developer has been asked to create an AWS Elastic Beanstalk environment for a production web application which needs to handle thousands of requests. Currently the dev environment is running on a t1 micro instance. How can the Developer change the EC2 instance type to m4.large?
- A. Use CloudFormation to migrate the Amazon EC2 instance type of the environment from t1 micro to m4.large.
- B. Create a saved configuration file in Amazon S3 with the instance type as m4.large and use the same during environment creation.
- C. Change the instance type to m4.large in the configuration details page of the Create New Environment page.
- D. Change the instance type value for the environment to m4.large by using update autoscaling group CLI command.
Q24: What statements are true about Availability Zones (AZs) and Regions?
- A. There is only one AZ in each AWS Region
- B. AZs are geographically separated inside a region to help protect against natural disasters affecting more than one at a time.
- C. AZs can be moved between AWS Regions based on your needs
- D. There are (almost always) two or more AZs in each AWS Region
Q25: An AWS Region contains:
- A. Edge Locations
- B. Data Centers
- C. AWS Services
- D. Availability Zones
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Q26: Which read request in DynamoDB returns a response with the most up-to-date data, reflecting the updates from all prior write operations that were successful?
- A. Eventual Consistent Reads
- B. Conditional reads for Consistency
- C. Strongly Consistent Reads
- D. Not possible
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Q27: You’ve been asked to move an existing development environment on the AWS Cloud. This environment consists mainly of Docker based containers. You need to ensure that minimum effort is taken during the migration process. Which of the following step would you consider for this requirement?
- A. Create an Opswork stack and deploy the Docker containers
- B. Create an application and Environment for the Docker containers in the Elastic Beanstalk service
- C. Create an EC2 Instance. Install Docker and deploy the necessary containers.
- D. Create an EC2 Instance. Install Docker and deploy the necessary containers. Add an Autoscaling Group for scalability of the containers.
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Q28: You’ve written an application that uploads objects onto an S3 bucket. The size of the object varies between 200 – 500 MB. You’ve seen that the application sometimes takes a longer than expected time to upload the object. You want to improve the performance of the application. Which of the following would you consider?
- A. Create multiple threads and upload the objects in the multiple threads
- B. Write the items in batches for better performance
- C. Use the Multipart upload API
- D. Enable versioning on the Bucket
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Q29: A security system monitors 600 cameras, saving image metadata every 1 minute to an Amazon DynamoDb table. Each sample involves 1kb of data, and the data writes are evenly distributed over time. How much write throughput is required for the target table?
- A. 6000
- B. 10
- C. 3600
- D. 600
Q30: What two arguments does a Python Lambda handler function require?
- A. invocation, zone
- B. event, zone
- C. invocation, context
- D. event, context
Top
Q31: Lambda allows you to upload code and dependencies for function packages:
- A. Only from a directly uploaded zip file
- B. Only via SFTP
- C. Only from a zip file in AWS S3
- D. From a zip file in AWS S3 or uploaded directly from elsewhere
Top
Q32: A Lambda deployment package contains:
- A. Function code, libraries, and runtime binaries
- B. Only function code
- C. Function code and libraries not included within the runtime
- D. Only libraries not included within the runtime
Top
Q33: You have instances inside private subnets and a properly configured bastion host instance in a public subnet. None of the instances in the private subnets have a public or Elastic IP address. How can you connect an instance in the private subnet to the open internet to download system updates?
- A. Create and assign EIP to each instance
- B. Create and attach a second IGW to the VPC.
- C. Create and utilize a NAT Gateway
- D. Connect to a VPN
Top
Q34: What feature of VPC networking should you utilize if you want to create “elasticity” in your application’s architecture?
- A. Security Groups
- B. Route Tables
- C. Elastic Load Balancer
- D. Auto Scaling
Top
Q30: Lambda allows you to upload code and dependencies for function packages:
- A. Only from a directly uploaded zip file
- B. Only from a directly uploaded zip file
- C. Only from a zip file in AWS S3
- D. From a zip file in AWS S3 or uploaded directly from elsewhere
Answer:
Top
Q31: An organization is using an Amazon ElastiCache cluster in front of their Amazon RDS instance. The organization would like the Developer to implement logic into the code so that the cluster only retrieves data from RDS when there is a cache miss. What strategy can the Developer implement to achieve this?
- A. Lazy loading
- B. Write-through
- C. Error retries
- D. Exponential backoff
Answer:
Top
Q32: A developer is writing an application that will run on Ec2 instances and read messages from SQS queue. The messages will arrive every 15-60 seconds. How should the Developer efficiently query the queue for new messages?
- A. Use long polling
- B. Set a custom visibility timeout
- C. Use short polling
- D. Implement exponential backoff
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Q33: You are using AWS SAM to define a Lambda function and configure CodeDeploy to manage deployment patterns. With new Lambda function working as per expectation which of the following will shift traffic from original Lambda function to new Lambda function in the shortest time frame?
- A. Canary10Percent5Minutes
- B. Linear10PercentEvery10Minutes
- C. Canary10Percent15Minutes
- D. Linear10PercentEvery1Minute
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Q34: You are using AWS SAM templates to deploy a serverless application. Which of the following resource will embed application from Amazon S3 buckets?
- A. AWS::Serverless::Api
- B. AWS::Serverless::Application
- C. AWS::Serverless::Layerversion
- D. AWS::Serverless::Function
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Q35: You are using AWS Envelope Encryption for encrypting all sensitive data. Which of the followings is True with regards to Envelope Encryption?
- A. Data is encrypted be encrypting Data key which is further encrypted using encrypted Master Key.
- B. Data is encrypted by plaintext Data key which is further encrypted using encrypted Master Key.
- C. Data is encrypted by encrypted Data key which is further encrypted using plaintext Master Key.
- D. Data is encrypted by plaintext Data key which is further encrypted using plaintext Master Key.
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Q36: You are developing an application that will be comprised of the following architecture –
- A set of Ec2 instances to process the videos.
- These (Ec2 instances) will be spun up by an autoscaling group.
- SQS Queues to maintain the processing messages.
- There will be 2 pricing tiers.
How will you ensure that the premium customers videos are given more preference?
- A. Create 2 Autoscaling Groups, one for normal and one for premium customers
- B. Create 2 set of Ec2 Instances, one for normal and one for premium customers
- C. Create 2 SQS queus, one for normal and one for premium customers
- D. Create 2 Elastic Load Balancers, one for normal and one for premium customers.
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Q37: You are developing an application that will interact with a DynamoDB table. The table is going to take in a lot of read and write operations. Which of the following would be the ideal partition key for the DynamoDB table to ensure ideal performance?
- A. CustomerID
- B. CustomerName
- C. Location
- D. Age
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Q38: A developer is making use of AWS services to develop an application. He has been asked to develop the application in a manner to compensate any network delays. Which of the following two mechanisms should he implement in the application?
- A. Multiple SQS queues
- B. Exponential backoff algorithm
- C. Retries in your application code
- D. Consider using the Java sdk.
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Q39: An application is being developed that is going to write data to a DynamoDB table. You have to setup the read and write throughput for the table. Data is going to be read at the rate of 300 items every 30 seconds. Each item is of size 6KB. The reads can be eventual consistent reads. What should be the read capacity that needs to be set on the table?
- A. 10
- B. 20
- C. 6
- D. 30
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Q40: You are in charge of deploying an application that will be hosted on an EC2 Instance and sit behind an Elastic Load balancer. You have been requested to monitor the incoming connections to the Elastic Load Balancer. Which of the below options can suffice this requirement?
- A. Use AWS CloudTrail with your load balancer
- B. Enable access logs on the load balancer
- C. Use a CloudWatch Logs Agent
- D. Create a custom metric CloudWatch lter on your load balancer
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Q41: A static web site has been hosted on a bucket and is now being accessed by users. One of the web pages javascript section has been changed to access data which is hosted in another S3 bucket. Now that same web page is no longer loading in the browser. Which of the following can help alleviate the error?
- A. Enable versioning for the underlying S3 bucket.
- B. Enable Replication so that the objects get replicated to the other bucket
- C. Enable CORS for the bucket
- D. Change the Bucket policy for the bucket to allow access from the other bucket
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Q42: Your mobile application includes a photo-sharing service that is expecting tens of thousands of users at launch. You will leverage Amazon Simple Storage Service (S3) for storage of the user Images, and you must decide how to authenticate and authorize your users for access to these images. You also need to manage the storage of these images. Which two of the following approaches should you use? Choose two answers from the options below
- A. Create an Amazon S3 bucket per user, and use your application to generate the S3 URL for the appropriate content.
- B. Use AWS Identity and Access Management (IAM) user accounts as your application-level user database, and offload the burden of authentication from your application code.
- C. Authenticate your users at the application level, and use AWS Security Token Service (STS)to grant token-based authorization to S3 objects.
- D. Authenticate your users at the application level, and send an SMS token message to the user. Create an Amazon S3 bucket with the same name as the SMS message token, and move the user’s objects to that bucket.
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Q43: Your current log analysis application takes more than four hours to generate a report of the top 10 users of your web application. You have been asked to implement a system that can report this information in real time, ensure that the report is always up to date, and handle increases in the number of requests to your web application. Choose the option that is cost-effective and can fulfill the requirements.
- A. Publish your data to CloudWatch Logs, and congure your application to Autoscale to handle the load on demand.
- B. Publish your log data to an Amazon S3 bucket. Use AWS CloudFormation to create an Auto Scaling group to scale your post-processing application which is congured to pull down your log les stored an Amazon S3
- C. Post your log data to an Amazon Kinesis data stream, and subscribe your log-processing application so that is congured to process your logging data.
- D. Create a multi-AZ Amazon RDS MySQL cluster, post the logging data to MySQL, and run a map reduce job to retrieve the required information on user counts.
Answer:
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Q44: You’ve been instructed to develop a mobile application that will make use of AWS services. You need to decide on a data store to store the user sessions. Which of the following would be an ideal data store for session management?
- A. AWS Simple Storage Service
- B. AWS DynamoDB
- C. AWS RDS
- D. AWS Redshift
Answer:
Top
Q45: Your application currently interacts with a DynamoDB table. Records are inserted into the table via the application. There is now a requirement to ensure that whenever items are updated in the DynamoDB primary table , another record is inserted into a secondary table. Which of the below feature should be used when developing such a solution?
- A. AWS DynamoDB Encryption
- B. AWS DynamoDB Streams
- C. AWS DynamoDB Accelerator
- D. AWSTable Accelerator
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Q46: An application has been making use of AWS DynamoDB for its back-end data store. The size of the table has now grown to 20 GB , and the scans on the table are causing throttling errors. Which of the following should now be implemented to avoid such errors?
- A. Large Page size
- B. Reduced page size
- C. Parallel Scans
- D. Sequential scans
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Q47: Which of the following is correct way of passing a stage variable to an HTTP URL ? (Select TWO.)
- A. http://example.com/${}/prod
- B. http://example.com/${stageVariables.}/prod
- C. http://${stageVariables.}.example.com/dev/operation
- D. http://${stageVariables}.example.com/dev/operation
- E. http://${}.example.com/dev/operation
- F. http://example.com/${stageVariables}/prod
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Q48: Your company is planning on creating new development environments in AWS. They want to make use of their existing Chef recipes which they use for their on-premise configuration for servers in AWS. Which of the following service would be ideal to use in this regard?
- A. AWS Elastic Beanstalk
- B. AWS OpsWork
- C. AWS Cloudformation
- D. AWS SQS
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Q49: Your company has developed a web application and is hosting it in an Amazon S3 bucket configured for static website hosting. The users can log in to this app using their Google/Facebook login accounts. The application is using the AWS SDK for JavaScript in the browser to access data stored in an Amazon DynamoDB table. How can you ensure that API keys for access to your data in DynamoDB are kept secure?
- A. Create an Amazon S3 role in IAM with access to the specific DynamoDB tables, and assign it to the bucket hosting your website
- B. Configure S3 bucket tags with your AWS access keys for your bucket hosing your website so that the application can query them for access.
- C. Configure a web identity federation role within IAM to enable access to the correct DynamoDB resources and retrieve temporary credentials
- D. Store AWS keys in global variables within your application and configure the application to use these credentials when making requests.
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Q50: Your application currently makes use of AWS Cognito for managing user identities. You want to analyze the information that is stored in AWS Cognito for your application. Which of the following features of AWS Cognito should you use for this purpose?
- A. Cognito Data
- B. Cognito Events
- C. Cognito Streams
- D. Cognito Callbacks
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Q51: You’ve developed a set of scripts using AWS Lambda. These scripts need to access EC2 Instances in a VPC. Which of the following needs to be done to ensure that the AWS Lambda function can access the resources in the VPC. Choose 2 answers from the options given below
- A. Ensure that the subnet ID’s are mentioned when configuring the Lambda function
- B. Ensure that the NACL ID’s are mentioned when configuring the Lambda function
- C. Ensure that the Security Group ID’s are mentioned when configuring the Lambda function
- D. Ensure that the VPC Flow Log ID’s are mentioned when configuring the Lambda function
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Q52: You’ve currently been tasked to migrate an existing on-premise environment into Elastic Beanstalk. The application does not make use of Docker containers. You also can’t see any relevant environments in the beanstalk service that would be suitable to host your application. What should you consider doing in this case?
- A. Migrate your application to using Docker containers and then migrate the app to the Elastic Beanstalk environment.
- B. Consider using Cloudformation to deploy your environment to Elastic Beanstalk
- C. Consider using Packer to create a custom platform
- D. Consider deploying your application using the Elastic Container Service
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Q53: Company B is writing 10 items to the Dynamo DB table every second. Each item is 15.5Kb in size. What would be the required provisioned write throughput for best performance? Choose the correct answer from the options below.
- A. 10
- B. 160
- C. 155
- D. 16
Top
Q54: Which AWS Service can be used to automatically install your application code onto EC2, on premises systems and Lambda?
- A. CodeCommit
- B. X-Ray
- C. CodeBuild
- D. CodeDeploy
Top
Q55: Which AWS service can be used to compile source code, run tests and package code?
- A. CodePipeline
- B. CodeCommit
- C. CodeBuild
- D. CodeDeploy
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Q56: How can your prevent CloudFormation from deleting your entire stack on failure? (Choose 2)
- A. Set the Rollback on failure radio button to No in the CloudFormation console
- B. Set Termination Protection to Enabled in the CloudFormation console
- C. Use the –disable-rollback flag with the AWS CLI
- D. Use the –enable-termination-protection protection flag with the AWS CLI
Q57: Which of the following practices allows multiple developers working on the same application to merge code changes frequently, without impacting each other and enables the identification of bugs early on in the release process?
- A. Continuous Integration
- B. Continuous Deployment
- C. Continuous Delivery
- D. Continuous Development
Q58: When deploying application code to EC2, the AppSpec file can be written in which language?
- A. JSON
- B. JSON or YAML
- C. XML
- D. YAML
Q59: Part of your CloudFormation deployment fails due to a mis-configuration, by defaukt what will happen?
- A. CloudFormation will rollback only the failed components
- B. CloudFormation will rollback the entire stack
- C. Failed component will remain available for debugging purposes
- D. CloudFormation will ask you if you want to continue with the deployment
Q60: You want to receive an email whenever a user pushes code to CodeCommit repository, how can you configure this?
- A. Create a new SNS topic and configure it to poll for CodeCommit eveents. Ask all users to subscribe to the topic to receive notifications
- B. Configure a CloudWatch Events rule to send a message to SES which will trigger an email to be sent whenever a user pushes code to the repository.
- C. Configure Notifications in the console, this will create a CloudWatch events rule to send a notification to a SNS topic which will trigger an email to be sent to the user.
- D. Configure a CloudWatch Events rule to send a message to SQS which will trigger an email to be sent whenever a user pushes code to the repository.
Q61: Which AWS service can be used to centrally store and version control your application source code, binaries and libraries
- A. CodeCommit
- B. CodeBuild
- C. CodePipeline
- D. ElasticFileSystem
Q62: You are using CloudFormation to create a new S3 bucket,
which of the following sections would you use to define the properties of your bucket?
- A. Conditions
- B. Parameters
- C. Outputs
- D. Resources
Q63: You are deploying a number of EC2 and RDS instances using CloudFormation. Which section of the CloudFormation template
would you use to define these?
- A. Transforms
- B. Outputs
- C. Resources
- D. Instances
Q64: Which AWS service can be used to fully automate your entire release process?
- A. CodeDeploy
- B. CodePipeline
- C. CodeCommit
- D. CodeBuild
Q65: You want to use the output of your CloudFormation stack as input to another CloudFormation stack. Which sections of the CloudFormation template would you use to help you configure this?
- A. Outputs
- B. Transforms
- C. Resources
- D. Exports
Q66: You have some code located in an S3 bucket that you want to reference in your CloudFormation template. Which section of the template can you use to define this?
- A. Inputs
- B. Resources
- C. Transforms
- D. Files
Q67: You are deploying an application to a number of Ec2 instances using CodeDeploy. What is the name of the file
used to specify source files and lifecycle hooks?
- A. buildspec.yml
- B. appspec.json
- C. appspec.yml
- D. buildspec.json
Q68: Which of the following approaches allows you to re-use pieces of CloudFormation code in multiple templates, for common use cases like provisioning a load balancer or web server?
- A. Share the code using an EBS volume
- B. Copy and paste the code into the template each time you need to use it
- C. Use a cloudformation nested stack
- D. Store the code you want to re-use in an AMI and reference the AMI from within your CloudFormation template.
Q69: In the CodeDeploy AppSpec file, what are hooks used for?
- A. To reference AWS resources that will be used during the deployment
- B. Hooks are reserved for future use
- C. To specify files you want to copy during the deployment.
- D. To specify, scripts or function that you want to run at set points in the deployment lifecycle
Q70: Which command can you use to encrypt a plain text file using CMK?
- A. aws kms-encrypt
- B. aws iam encrypt
- C. aws kms encrypt
- D. aws encrypt
Q72: Which of the following is an encrypted key used by KMS to encrypt your data
- A. Custmoer Mamaged Key
- B. Encryption Key
- C. Envelope Key
- D. Customer Master Key
Q73: Which of the following statements are correct? (Choose 2)
- A. The Customer Master Key is used to encrypt and decrypt the Envelope Key or Data Key
- B. The Envelope Key or Data Key is used to encrypt and decrypt plain text files.
- C. The envelope Key or Data Key is used to encrypt and decrypt the Customer Master Key.
- D. The Customer MasterKey is used to encrypt and decrypt plain text files.
Q74: Which of the following statements is correct in relation to kMS/ (Choose 2)
- A. KMS Encryption keys are regional
- B. You cannot export your customer master key
- C. You can export your customer master key.
- D. KMS encryption Keys are global
AWS Certified Developer Associate exam: Whitepapers
AWS has provided whitepapers to help you understand the technical concepts. Below are the recommended whitepapers for the AWS Certified Developer – Associate Exam.
- Overview of Amazon Web Services
- Architecting for the Cloud: AWS Best Practices
- AWS Security Best Practices whitepaper, August 2016
- AWS Well-Architected Framework whitepaper, November 2017 Version 1.3 DVA-C01 Page |2
- Architecting for the Cloud AWS Best Practices whitepaper, February, 2016
- Practicing Continuous Integration and Continuous Delivery on AWS Accelerating Software Delivery with DevOps whitepaper, June 2017
- Microservices on AWS whitepaper, September 2017
- Serverless Architectures with AWS Lambda whitepaper, November 2017
- Optimizing Enterprise Economics with Serverless Architectures whitepaper, October 2017
- Running Containerized Microservices on AWS whitepaper, November 2017
- Blue/Green Deployments on AWS whitepaper, August 2016
Online Training and Labs for AWS Certified Developer Associates Exam
AWS Developer Associates Jobs
AWS Certified Developer-Associate Exam info and details, How To:
The AWS Certified Developer Associate exam is a multiple choice, multiple answer exam. Here is the Exam Overview:
- Certification Name: AWS Certified Developer Associate.
- Prerequisites for the Exam: None.
- Exam Pattern: Multiple Choice Questions
- The AWS Certified Developer-Associate Examination (DVA-C01) is a pass or fail exam. The examination is scored against a minimum standard established by AWS professionals guided by certification industry best practices and guidelines.
- Your results for the examination are reported as a score from 100 – 1000, with a minimum passing score of 720.
- Exam fees: US $150
- Exam Guide on AWS Website
- Available languages for tests: English, Japanese, Korean, Simplified Chinese
- Read AWS whitepapers
- Register for certification account here.
- Prepare for Certification Here
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Exam Content Outline
Domain % of Examination Domain 1: Deployment (22%)
1.1 Deploy written code in AWS using existing CI/CD pipelines, processes, and patterns.
1.2 Deploy applications using Elastic Beanstalk.
1.3 Prepare the application deployment package to be deployed to AWS.
1.4 Deploy serverless applications22% Domain 2: Security (26%)
2.1 Make authenticated calls to AWS services.
2.2 Implement encryption using AWS services.
2.3 Implement application authentication and authorization.26% Domain 3: Development with AWS Services (30%)
3.1 Write code for serverless applications.
3.2 Translate functional requirements into application design.
3.3 Implement application design into application code.
3.4 Write code that interacts with AWS services by using APIs, SDKs, and AWS CLI.30% Domain 4: Refactoring
4.1 Optimize application to best use AWS services and features.
4.2 Migrate existing application code to run on AWS.10% Domain 5: Monitoring and Troubleshooting (10%)
5.1 Write code that can be monitored.
5.2 Perform root cause analysis on faults found in testing or production.10% TOTAL 100%
AWS Certified Developer Associate exam: Additional Information for reference
Below are some useful reference links that would help you to learn about AWS Certified Developer Associate Exam.
- Developing on AWS: An instructor-led live or virtual 3-day course
- https://aws.amazon.com/certification/faqs/
- AWS Digital Training: Application Services, Developer Tools, and other services covered on the exam
- Prepare for AWS Certification
- AWS EC2 Instance info
- AWS Certified Developer Associate Exam Guide
Other Relevant and Recommended AWS Certifications
- AWS Certified Cloud Practitioner
- AWS Certified Solutions Architect – Associate
- AAWS Certified Developer – Associate
- AWS Certified SysOps Administrator – Associate
- AWS Certified Solutions Architect – Professional
- AWS Certified DevOps Engineer – Professional
- AWS Certified Big Data Specialty
- AWS Certified Advanced Networking.
- AWS Certified Security – Specialty