AWS-Certified-Developer-Associate Free Practice Test

- (Exam Topic 4)
A development team set up a pipeline to launch a test environment. The developers want to automate tests for their application. The team created an AWS CodePipeline stage to deploy the application to a test environment in batches using AWS Elastic Beanstalk. A later CodePipeline stage contains a single action that uses AWS CodeBuild to run numerous automated Selenium-based tests on the deployed application. The team must speed up the pipeline without removing any of the individual tests.
Which set of actions will MOST effectively speed up application deployment and testing?

1. A. Set up an all-at-once deployment in Elastic Beanstal
2. B. Run tests in parallel with multiple CodeBuild actions.
3. C. Set up a rolling update in Elastic Beanstal
4. D. Run tests in serial with a single CodeBuild action.
5. E. Set up an immutable update in Elastic Beanstal
6. F. Run tests in serial with a single CodeBuild action.
7. G. Set up a traffic-splitting deployment in Elastic Beanstal
8. H. Run tests in parallel with multiple CodeBuild actions.

Correct Answer: A
https://docs.aws.amazon.com/elasticbeanstalk/latest/dg/using-features.deploy-existing-version.html
All at once – The quickest deployment method. Suitable if you can accept a short loss of service, and if quick deployments are important to you. With this method, Elastic Beanstalk deploys the new application version to each instance. Then, the web proxy or application server might need to restart. As a result, your application might be unavailable to users (or have low availability) for a short time.

- (Exam Topic 3)
A developer is creating an application that is based on an AWS Lambda function. The function uses the AWS SDK to read product price data from an Amazon S3 bucket and to write user information to an Amazon Aurora DB instance The Lambda function runs often, up to a few times each minute To meet performance requirements, the developer must minimize the run duration of the Lambda function
Which actions can help the developer increase the performance? (Select TWO)

1. A. Initialize SDK clients and database connections outside of the function handler
2. B. Read the S3 product price data initially and cache it locally in the /imp directory
3. C. Use environment variables to pass operational parameters to the function.
4. D. Use most-restrictive permissions when setting the 1AM policies for the Lambda 1AM role
5. E. Split the code into different Lambda functions to keep the functions smaller

Correct Answer: AC

A user is trying to understand AWS SNS. To which of the below mentioned end points is SNS unable to send a notification?

1. A. AWS SES
2. B. Email JSON
3. C. AWS SQS
4. D. HTTP

Correct Answer: A
Amazon Simple Notification Service (Amazon SNS) is a fast, filexible, and fully managed push messaging service. Amazon SNS can deliver notifications by SMS text message or email to the Amazon Simple Queue Service (SQS) queues or to any HTTP endpoint. The user can select one the following
transports as part of the subscription requests: "HTTP", "HTTPS","Emai|", "EmaiI-JSON", "SQS", "and SMS".
Reference: http://aws.amazon.com/sns/faqs/

Which of the following are valid SNS delivery transports? Choose 2 answers

1. A. HTTP
2. B. UDP
3. C. SNIS
4. D. DynamoDB
5. E. Named Pipes

Correct Answer: AC

Which features can be used to restrict access to data in S3? Choose 2 answers

1. A. Use S3 Virtual Hosting
2. B. Set an S3 Bucket policy.
3. C. Enable IAM Identity Federation.
4. D. Set an S3 ACL on the bucket or the object.
5. E. Create a C|oudFront distribution for the bucket

Correct Answer: CD