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Sample Questions

Question 1

A developer has created a Java application that makes HTTP requests directly to AWS services. Application logging shows 5xx HTTP response codes that occ irregular intervals. The errors are affecting users. How should the developer update the application to improve the application's resiliency?

A. Revise the request content in the application code. 
B. Use the AWS SDK for Java to interact with AWS APIs. 
C. Scale out the application so that more instances of the application are running. 
D. Add additional logging to the application code. 

Answer: B

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Question 2

A developer has an Amazon DynamoDB table that must be in provisioned mode to comply with user requirements. The application needs to support the following: • Average item size: 10 KB • Item reads each second: 10 strongly consistent • Item writes each second: 2 transactional Which read and write capacity cost-effectively meets these requirements? 

A. Read 10; write 2 
B. Read 30; write 40 
C. Use on-demand scaling
 D. Read 300; write 400 

Answer: B

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Question 3

A company is using an Amazon API Gateway REST API endpoint as a webhook lo publish events from an on-premises source control management (SCM) system to Amazon EventBridge. The company has configured an EventBridge rule to listen for the events and to control application deployment m a central AWS account. The company needs to receive the same events across multiple receiver AWS accounts How can a developer meet these requirements without changing the configuration of the SCM system? 

A. Deploy the API Gateway REST API to all the required AWS accounts. Use the same custom domain name for all the gateway endpoints so that a single SCM webhook can be used for all events from all accounts. 
B. Deploy the API Gateway REST API to all the receiver AWS accounts Create as many SCM webhooks as the number of AWS accounts. 
C. Grant permission to the central AWS account for EventBridge to access the receiver AWS accounts. Add an EventBridge event bus on the receiver AWS accounts as the targets to the existing EventBridge rule 
D. Convert the API Gateway type from REST API to HTTP API 

Answer: A

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Question 4

A developer is creating an AWS CloudFormation template to deploy Amazon EC2 instances across multiple AWS accounts. The developer must choose the EC2 instances from a list of approved instance types. How can the developer incorporate the list of approved instance types in the CloudFormation template?

 A. Create a separate CloudFormation template for each EC2 instance type in the list 
B. In the Resources section of the CloudFormation template, create resources for each EC2 instance type in the list. 
C. In the CloudFormation template, create a separate parameter for each EC2 instance type in the list. 
D. In the CloudFormation template, create a parameter with the list of EC2 instance types as AllowedValues 

Answer: B

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Question 5

A data-processing application includes an AWS Lambda function that processes data in several steps. Recently, the function has been reaching the Lambda tii A developer wants to use AWS X-Ray to find out how long each step is taking so that the developer can determine which step is causing the timeout. Which combination of actions should the developer take to accomplish this goal? (Select TWO.) 

A. Modify the application to call the PutMetricData API operation after each processing step. Include the time taken in milliseconds. 
B. Use the aws lambda update-function-configuration AWS CLI command to enable active tracing on the Lambda function. 
C. Modify the application to record each processing step in an X-Ray subsegment by using the X-Ray software development kit (SDK). 
D. Add the xray:PutTraceSegments permission and the xray:PutTelemetryRecords permission to the Lambda function's execution role. 
E. Modify the application to put each processing step in a separate Lambda layer. Include all the layers in the Lambda function. 

Answer: B

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