AWS-DA(131-140)
AWS Deep Dive Quiz
Test your knowledge of AWS services and best practices with this comprehensive quiz! Perfect for developers, aspiring cloud architects, and anyone looking to sharpen their AWS skills.
- 10 challenging questions
- Focus on real-world scenarios
- Ideal for certification preparation
A development team deploys a Java-based web application using AWS Elastic Beanstalk. The team want to guarantee that any modifications to the source code or settings are automatically distributed to new instances. The team configures Elastic Beanstalk such that immutable updates are used. However, an issue occurs the first time the new update policy is used to deploy a modification. Which of the following is the MOST LIKELY CAUSE of this problem?
A. Immutable updates are not supported for Java-based applications
B. The account has reached its on-demand instance limit.
C. Immutable updates are only supported for m4.large and larger instance types.
D. The developer must also modify the .ebextensions/immutable-updates.config file to enable immutable updates.
What are the procedures for launching a templatized serverless application using the AWS CLI?
A. Use AWS CloudFormation get-template then CloudFormation execute-change-set.
B. Use AWS CloudFormation validate-template then CloudFormation create-change-set.
C. Use AWS CloudFormation package then CloudFormation deploy.
D. Use AWS CloudFormation create-stack then CloudFormation update-stack.
A cluster of Amazon EC2 instances hosts an application. When attempting to read items encrypted using server-side encryption using AWS KMS managed keys (SSE-KMS) from a single Amazon S3 bucket, the application encounters the following error:
Which measures should be made in combination to avoid this failure? (Select two.)
A. Contact AWS Support to request an AWS KMS rate limit increase.
B. Perform error retries with exponential backoff in the application code.
C. Contact AWS Support to request a S3 rate limit increase.
D. Import a customer master key (CMK) with a larger key size.
E. Use more than one customer master key (CMK) to encrypt S3 data.
AWS Lambda functions need read/write access to an Amazon S3 bucket and to an Amazon DynamoDB database. The appropriate IAM policy is already in place. How can I allow the Lambda function access to the S3 bucket and DynamoDB database in the MOST SECURE manner possible?
A. Attach the existing IAM policy to the Lambda function.
B. Create an IAM role for the Lambda function. Attach the existing IAM policy to the role. Attach the role to the Lambda function.
C. Create an IAM user with programmatic access. Attach the existing IAM policy to the user. Add the user access key ID and secret access key as environment variables in the Lambda function.
D. Add the AWS account root user access key ID and secret access key as encrypted environment variables in the Lambda function.
The developer is developing a web application that uses a POST request to capture highly controlled and private user data. Amazon CloudFront is used to serve the web application. User names and phone numbers must be encrypted at the edge of the application stack and must stay encrypted throughout. What is the SECUREST method for meeting these requirements?
A. Enforce Match Viewer with HTTPS Only on CloudFront.
B. Use only the newest TLS security policy on CloudFront.
C. Enforce a signed URL on CloudFront on the front end.
D. Use field-level encryption on CloudFront.
Numerous apps make use of an Amazon RDS database instance to seek for previous data. The pace of queries is quite steady. When historical data is updated daily, the associated write traffic degrades the speed of read queries, affecting all application users. What can be done to minimize the effect on application users' performance?
A. Make sure Amazon RDS is Multi-AZ so it can better absorb increased traffic.
B. Create an RDS Read Replica and direct all read traffic to the replica.
C. Implement Amazon ElastiCache in front of Amazon RDS to buffer the write traffic.
D. Use Amazon DynamoDB instead of Amazon RDS to buffer the read traffic.
A marketing firm maintains a dynamic website that receives a high volume of visitors. The firm want to shift the website infrastructure to AWS, which will manage all aspects of the website except development. Which option BEST satisfies these criteria?
A. Use AWS VM Import to migrate a web server image to AWS. Launch the image on a compute-optimized Amazon EC2 instance.
B. Launch multiple Amazon Lightsail instances behind a load balancer. Set up the website on those instances.
C. Deploy the website code in an AWS Elastic Beanstalk environment. Use Auto Scaling to scale the numbers of instances.
D. Use Amazon S3 to host the website. Use Amazon CloudFront to deliver the content at scale.
A program is supposed to process a large number of files. Each file processes an AWS Lambda call in four minutes. The Lambda function returns no useful data. What is the quickest method for processing all of the files?
A. First split the files to make them smaller, then process with synchronous RequestResponse Lambda invocations.
B. Make synchronous RequestResponse Lambda invocations and process the files one by one.
C. Make asynchronous Event Lambda invocations and process the files in parallel.
D. First join all the files, then process it all at once with an asynchronous Event Lambda invocation.
An online retailer used AWS CloudFormation to construct a serverless application utilizing AWS Lambda, Amazon API Gateway, Amazon S3, and Amazon DynamoDB. The firm released a new version with significant enhancements to the Lambda function and put it to production. Following that, the application ceased to function. Which approach should be used to restart the program as soon as possible?
A. Redeploy the application on Amazon EC2 so the Lambda function can resolve dependencies
B. Migrate DynamoDB to Amazon RDS and redeploy the Lambda function
C. Roll back the Lambda function to the previous version
D. Deploy the latest Lambda function in a different Region
A Global Secondary Index (GSI) is used by Amazon DynamoDB to facilitate read queries. The main table is heavily utilized for write operations, while the GSI is heavily used for read activities. When the Developer examines Amazon CloudWatch analytics, he observes that write operations to the main table are regularly throttled during periods of high write activity. However, write capacity units to the primary table remain accessible and unutilized. What is the reason for the table's throttling?
A. The GSI write capacity units are underprovisioned
B. There are not enough read capacity units on the primary table
C. Amazon DynamoDB Streams is not enabled on the table
D. A large write operation is being performed against another table
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