A company is using AWS CodeBuild to compile a website from source code stored in AWS CodeCommit. A recent change to the source code has resulted in the CodeBuild project being unable to successfully compile the website.
How should the Developer identify the cause of the failures?

• A.Use a custom Docker image that includes the AWS X-Ray agent in the AWS CodeBuild project configuration.
• B.Manually re-run the build process on a local machine so that the output can be visualized.
• C.Check the build logs of the failed phase in the last build attempt in the AWS CodeBuild project build history.
• D.Modify the buildspec.yml file to include steps to send the output of build commands to Amazon CloudWatch.

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A Developer is creating a web application that requires authentication, but also needs to support guest access to provide users limited access without having to authenticate. What service can provide support for the application to allow guest access?

• A.IAM temporary credentials using AWS STS.
• B.Amazon Directory Service
• C.Amazon Cognito with unauthenticated access enabled
• D.IAM with SAML integration

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A developer has written an AWS Lambda function using Java as the runtime environment. The developer wants to isolate a performance bottleneck in the code.
Which steps should be taken to reveal the bottleneck?

• A.Use the Amazon CloudWatch API to write timestamps to a custom CloudWatch metric Use the CloudWatch console to analyze the resulting data
• B.Use the Amazon CloudWatch API to write timestamps to a custom CloudWatch metric Use the AWS X-Ray console to analyze the resulting data
• C.Use the AWS X-Ray API to write trace data into X-Ray from strategic places within the code. Use the X-Ray console to analyze the resulting data
• D.Use the AWS X-Ray API to write trace data into X-Ray from strategic places within the code Use the Amazon CloudWatch console to analyze the resulting data

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A Developer has developed a web application and wants to deploy it quickly on a Tomcat server on AWS. The Developer wants to avoid having to manage the underlying infrastructure.
What is the easiest way to deploy the application, based on these requirements?

• A.AWS Elastic Beanstalk
• B.Amazon S3
• C.AWS CodePipeline
• D.AWS CloudFormation

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A developer is building an application integrating an Amazon API Gateway with an AWS Lambda function. When calling the API, the developer receives the following error. Wed Nov 03 01:13:00 UTC 2017 : Method completed with status: 502 What should the developer do to resolve the error?

• A.Change the format of the Lambda function response to the API call
• B.Change the HTTP endpoint of the API to an HTTPS endpoint.
• C.Change the format of the payload sent to the API Gateway.
• D.Change the authorization header in the API call to access the Lambda function

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