Description
Questions with Explanation - Perfect DVA-C01 Practice Exam questions for PreparationTypes of Questions in DVA-C01 Exam: On the examination, you will see the following two categories of questions: The multiple-choice format has one answer that is appropriate while the other three are erroneous (distractors)Multiple responses: a question that has two or more right answers out of five or more possible answers to the questionPick the response (or responses) that you feel most adequately completes the statement or addresses the question asked. The response options known as "distractors" or "incorrect answers" are the kinds of responses that a candidate with insufficient knowledge or ability might select. Distractors are comments that are plausible in general and are relevant to the content area. There is no penalty for making educated guesses, and the score for questions to which no solution was provided is wrong. There are a total of fifty questions on the test that will be factored into your score. Unscored contentThere are 15 questions on the examination that are not scored and will have no effect on your final grade. AWS gathers data regarding how candidates perform on questions that are not scored in order to evaluate the questions and determine whether or not they should be used in the future as scored questions. On the exam, there is no indication of these questions not being scored. AWS Certified Developer-Associate Exam results: The AWS Certified Developer - Associate (DVA-C01) exam is graded on a pass/fail basis. The exam is graded against a minimal level defined by AWS specialists who follow best practices and principles in the certification industry. The exam results are given as a scaled score between 100 and 1,000. A score of 720 is required to pass. Your exam score indicates how well you did on the whole and if you passed. Scaled scoring models serve to equate scores across several exam forms with varying degrees of difficulty. A table of categories of your performance at each section level could be included in your score report. This data is intended to give you broad feedback on how well you did on your exam. You do not need to get a passing score in each area because the exam uses a compensating scoring approach. Only the total exam must be passed. Because each portion of the exam is weighted differently, some sections have more questions than others. The table provides broad information about your strengths and shortcomings. When analyzing section-level feedback, be cautious. Course Outline for the DVA-C01 Exam: It isn't a comprehensive list of the exam's material. However, you can use the additional background for each of the objectives to help you prepare for the exam. The primary content domains and their weightings are listed in the table below. The table comes before the full exam subject outline, which includes the supplementary background information. The percentage in each domain represents only scored content. Domain 1: Deployment 22%Domain 2: Security 26%Domain 3: Development with AWS Services 30%Domain 4: Refactoring 10%Domain 5: Monitoring and Troubleshooting 12%Domain 1: Deployment1.1 Deploy written code in AWS using existing CI/CD pipelines, processes, and patterns. Commit code to a repository and invoke build, test and/or deployment actionsUse labels and branches for version and release managementUse AWS CodePipeline to orchestrate workflows against different environmentsApply AWS CodeCommit, AWS CodeBuild, AWS CodePipeline, AWS CodeStar, and AWS CodeDeploy for CI/CD purposesPerform a rollback plan based on the application deployment policy1.2 Deploy applications using AWS Elastic Beanstalk. Utilize existing supported environments to define a new application stackPackage the applicationIntroduce a new application version into the Elastic Beanstalk environmentUtilize a deployment policy to deploy an application version (i. e., all at once, rolling, rolling with batch, immutable)Validate application health using Elastic Beanstalk dashboardUse Amazon CloudWatch Logs to instrument application logging1.3 Prepare the application deployment package to be deployed to AWS. Manage the dependencies of the code module (like environment variables, config files and static image files) within the packageOutline the package/container directory structure and organize files appropriatelyTranslate application resource requirements to AWS infrastructure parameters (e. g., memory, cores)1.4 Deploy serverless applications. Given a use case, implement and launch an AWS Serverless Application Model (AWS SAM) template. Manage environments in individual AWS services (e. g., Differentiate between Development, Test, and Production in Amazon API Gateway)Domain 2: Security2.1 Make authenticated calls to AWS services. Communicate required policy based on the least privileges required by the application. Assume an IAM role to access a serviceUse the software development kit (SDK) credential provider on-premises or in the cloud to access AWS services (local credentials vs. instance roles)2.2 Implement encryption using AWS services. Encrypt data at rest (client-side; server-side; envelope encryption) using AWS servicesEncrypt data in transit2.3 Implement application authentication and authorization. Add user sign-up and sign-in functionality for applications with Amazon Cognito identity or user poolsUse Amazon Cognito-provided credentials to write code that accesses AWS services. Use Amazon Cognito sync to synchronize user profiles and dataUse developer-authenticated identities to interact between end-user devices, backend authentication, and Amazon CognitoDomain 3: Development with AWS Services3.1 Write code for serverless applications. Compare and contrast server-based vs. serverless model (e. g., microservices, stateless nature of serverless applications, scaling serverless applications, and decoupling layers of serverless applications)Configure AWS Lambda functions by defining environment variables and parameters (e. g., memory, time out, runtime, handler)Create an API endpoint using Amazon API GatewayCreate and test appropriate API actions like GET, POST using the API endpointApply Amazon DynamoDB concepts (e. g., tables, items, and attributes)Compute read/write capacity units for Amazon DynamoDB based on application requirementsAssociate an AWS Lambda function with an AWS event source (e. g., Amazon API Gateway, Amazon CloudWatch event, Amazon S3 events, Amazon Kinesis)Invoke an AWS Lambda function synchronously and asynchronously3.2 Translate functional requirements into application design. Determine real-time vs. batch processing for a given use caseDetermine the use of synchronous vs. asynchronous for a given use caseDetermine use of event vs. schedule/poll for a given use caseAccount for tradeoffs for consistency models in an application design3.3 Implement application design into application code. Write code to utilize messaging services (e. g., SQS, SNS)Use Amazon ElastiCache to create a database cacheUse Amazon DynamoDB to index objects in Amazon S3Write a stateless AWS Lambda functionWrite a web application with stateless web servers (Externalize state)3.4 Write code that interacts with AWS services by using APIs, SDKs, and AWS CLI. Choose the appropriate APIs, software development kits (SDKs), and CLI commands for the code componentsWrite resilient code that deals with failures or exceptions (i. e., retries with exponential back off and jitter)Domain 4: Refactoring4.1 Optimize applications to best use AWS services and features. Implement AWS caching services to optimize performance (e. g., Amazon ElastiCache, Amazon API Gateway cache)Apply an Amazon S3 naming scheme for optimal read performance4.2 Migrate existing application code to run on AWS. Isolate dependenciesRun the application as one or more stateless processesDevelop in order to enable horizontal scalabilityExternalize stateDomain 5: Monitoring and Troubleshooting5.1 Write code that can be monitored. Create custom Amazon CloudWatch metricsPerform logging in a manner available to systems operatorsInstrument application source code to enable tracing in AWS X-Ray5.2 Perform root cause analysis on faults found in testing or production. Interpret the outputs from the logging mechanism in AWS to identify errors in logsCheck build and testing history in AWS services (e. g., AWS CodeBuild, AWS CodeDeploy, AWS CodePipeline) to identify issuesUtilize AWS services (e. g., Amazon CloudWatch, VPC Flow Logs, and AWS X-Ray) to locate a specific faulty componentAWS Certified Developer-Associate Exam PrerequisitesIn order to take the AWS Certified Developer test, you will need the following: At least one year of practical experience in the maintenance and development of AWS-based applicationsKnowledge of at least one high-level programming language together with expertise in AWS core servicesFamiliarity with the process of writing code for serverless apps as well as using AWS service APIs, SDKs, and the AWS Command Line Interface (CLI) for developing applications. DVA-C01 Exam Preparation Tips: To make things clear, the DVA-C01 Exam is not hard. That means it should be easy for you to pass the test and get the certification. But, for obvious reasons, if you don't study for the test, things will almost certainly go wrong. So, for the best results, we strongly suggest that you follow our step-by-step process.1. Follow the Official Study Guide and BooksWhen preparing for the DVA-C01 exam, make sure you follow the Official Study Guide and read the appropriate books. You really want to look into the Amazon Web Services website that is genuine. This is primarily attributable to the fact that it has been established that the website in question is the most trustworthy source of information for the test in question. You should look at the Amazon website since multiple studies have shown that it is the website that contains the information that is the most accurate and trustworthy on the test. This is the primary reason why you should look at the Amazon website. In light of everything that has been said, it should come as no surprise that the single most important thing you can do to get ready is to review each and every exam objective.2. Follow the AWS learning pathIt is crucial to take this particular step so that you can be confident that you have a good foundation, and the following step for you will be to explore the AWS Learning Paths. To phrase it another way, obtaining prior information will be analogous to carrying out preparatory labor. As a result of this, you should make it a priority to finish the training for each of the AWS-certified developer pathways that are listed below. Completing this stage will assist you in gaining information on the ins and outs of cloud development. Depending on your objectives and preferred method of learning, you may find that one path is better suited to you than another. It is essential that you go through this stage since doing so will equip you with a strong foundational knowledge of cloud development. To phrase it another way, obtaining prior information will be analogous to carrying out preparatory labor.3. Follow AWS whitepapers and FAQSRead the whitepapers and FAQs provided by AWS. The AWS team, analysts, and partners are solely responsible for the production of these whitepapers and FAQS. As part of your preparation for the exam, you should read the whitepapers provided by AWS. By providing you with technical information from Amazon Web Services, they will assist you in gaining a better grasp of the cloud. Whitepapers and manuals with a technical nature, as well as reference materials and architecture schematics, are also available. If you follow them, you will find that they are of great use to you in studying for the DVA-C01 exam.4. Join Online Discussions ForumsThe preparation for the certification exam can be greatly aided by attending online study sessions and participating in online discussion groups. Therefore, if you are having trouble with a certain topic, don't be afraid to reach out to other candidates through online study groups or discussion forums and ask them for help. You are not compelled in any way to take part in this activity. Simply put, this is a very private matter. Not to mention, staying connected with those who are travelling the same road as you is made possible by participating in online groups. You can also ask questions regarding the matter that you are having difficulty with. If it is okay with you, we can discuss this via email because it will be easier for both of us.5. Give Practice TestsIt is important to keep in mind that the result does not represent how much you know but rather how much you write. It is only possible to evaluate someone's talents by observing how well they perform. You can get familiar with the content included on the real exam by taking a practice test that AWS provides. Therefore, you must give them a shot. Learning how to answer questions on a test is not always a reliable indicator of how well you will perform in a job setting. If someone is unable to demonstrate their abilities, it will be impossible for you to forecast how well they will perform.
