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Amazon AWS Certified Developer - Associate Sample Questions (Q65-Q70):
NEW QUESTION # 65
A company is migrating an on-premises database to Amazon RDS for MySQL. The company has read-heavy workloads. The company wants to refactor the code to achieve optimum read performance for queries.
Which solution will meet this requirement with LEAST current and future effort?
- A. Deploy Amazon RDS with one or more read replicas. Modify the application code so that queries use the URL for the read replicas.
- B. Use open source replication software to create a copy of the MySQL database on an Amazon EC2 instance. Modify the application code so that queries use the IP address of the EC2 instance.
- C. Use a multi-AZ Amazon RDS deployment. Modify the code so that queries access the secondary RDS instance.
- D. Use a multi-AZ Amazon RDS deployment. Increase the number of connections that the code makes to the database or increase the connection pool size if a connection pool is in use.
Answer: C
NEW QUESTION # 66
A company needs to harden its container images before the images are in a running state. The company's application uses Amazon Elastic Container Registry (Amazon ECR) as an image registry. Amazon Elastic Kubernetes Service (Amazon EKS) for compute, and an AWS CodePipeline pipeline that orchestrates a continuous integration and continuous delivery (CI/CD) workflow.
Dynamic application security testing occurs in the final stage of the pipeline after a new image is deployed to a development namespace in the EKS cluster. A developer needs to place an analysis stage before this deployment to analyze the container image earlier in the CI/CD pipeline.
Which solution will meet these requirements with the MOST operational efficiency?
- A. Build the container image and run the docker scan command locally. Mitigate any findings before pushing changes to the source code repository. Write a pre-commit hook that enforces the use of this workflow before commit.
- B. Add an action to the deployment stage of the pipeline so that the action occurs before the deployment to the EKS cluster. Configure ECR basic image scanning to scan on image push. Use an AWS Lambda function as the action provider. Configure the Lambda function to check the scan results and to fail the pipeline if there are findings.
- C. Create a new CodePipeline stage that occurs after the container image is built. Configure ECR basic image scanning to scan on image push. Use an AWS Lambda function as the action provider. Configure the Lambda function to check the scan results and to fail the pipeline if there are findings.
- D. Create a new CodePipeline stage that occurs after source code has been retrieved from its repository. Run a security scanner on the latest revision of the source code. Fail the pipeline if there are findings.
Answer: B
NEW QUESTION # 67
A company is planning to securely manage one-time fixed license keys in AWS. The company's development team needs to access the license keys in automaton scripts that run in Amazon EC2 instances and in AWS CloudFormation stacks.
Which solution will meet these requirements MOST cost-effectively?
- A. AWS Secrets Manager secrets with a tag that is named SecretString
- B. CloudFormation NoEcho parameters
- C. Amazon S3 with encrypted files prefixed with "config"
- D. AWS Systems Manager Parameter Store SecureString parameters
Answer: D
NEW QUESTION # 68
An ecommerce company is using an AWS Lambda function behind Amazon API Gateway as its application tier. To process orders during checkout, the application calls a POST API from the frontend. The POST API invokes the Lambda function asynchronously. In rare situations, the application has not processed orders. The Lambda application logs show no errors or failures.
What should a developer do to solve this problem?
- A. Inspect the frontend logs for API failures. Call the POST API manually by using the requests from the log file.
- B. Inspect the Lambda logs in Amazon CloudWatch for possible errors. Fix the errors.
- C. Create and inspect the Lambda dead-letter queue. Troubleshoot the failed functions. Reprocess the events.
- D. Make sure that caching is disabled for the POST API in API Gateway.
Answer: C
NEW QUESTION # 69
A company is using an AWS Lambda function to process records from an Amazon Kinesis data stream. The company recently observed slow processing of the records. A developer notices that the iterator age metric for the function is increasing and that the Lambda run duration is constantly above normal.
Which actions should the developer take to increase the processing speed? (Choose two.)
- A. Decrease the timeout of the Lambda function.
- B. Decrease the number of shards of the Kinesis data stream.
- C. Increase the number of shards of the Kinesis data stream.
- D. Increase the timeout of the Lambda function.
- E. Increase the memory that is allocated to the Lambda function.
Answer: C,E
NEW QUESTION # 70
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