An AWS Lambda function accesses two Amazon DynamoDB tables. A developer wants to improve the performance of the Lambda function by identifying bottlenecks in the function. How can the developer inspect the timing of the DynamoDB API calls?

• A.Place an Application Load Balancer (ALB) in front of the two DynamoDB tables. Inspect the ALB logs
• B.Add DynamoDB as an event source to the Lambda function. View the performance with Amazon CloudWatch metrics
• C.Limit Lambda to no more than five concurrent invocations Monitor from the Lambda console
• D.Enable AWS X-Ray tracing for the function. View the traces from the X-Ray service.

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A developer is provided with an HTTPS clone URL for an AWS CodeCommit repository.
What needs to be configured before cloning this repository?

• A.Use AWS KMS to set up public and private keys for use with CodeCommit.
• B.Set up the Git credential helper to use an AWS credential profile, and enable the helper to send the path to the repositories.
• C.Generate encryption keys using AWS CloudHSM, then export the key for use with AWS CodeCommit.
• D.Use AWS certificate manager to provision public and private SSL/TLS certificates.

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A developer is attempting to use the Amazon S3 PutObject API operation to upload an object to an S3 bucket that has default encryption enabled. The developer receives a 400 Bad Request error.
What is the MOST likely cause of this error?

• A.The S3 bucket exceeds the maximum storage capacity that is allowed
• B.The object exceeds the maximum object size that is allowed.
• C.The API operation cannot access the encryption key
• D.The HTTP Content-Length header is missing.

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During non-peak hours, a Developer wants to minimize the execution time of a full Amazon DynamoDB table scan without affecting normal workloads. The workloads average half of the strongly consistent read capacity units during non-peak hours.
How would the Developer optimize this scan?

• A.Use parallel scans while limiting the rate
• B.Use sequential scans
• C.Increase read capacity units during the scan operation
• D.Change consistency to eventually consistent during the scan operation

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A developer has written the following IAM policy to provide access to an Amazon S3 bucket.

Which access does the policy allow regarding the s3:GetObject and s3 PutObject actions'?

• A.Access on all buckets except the "DOC-EXAMPLE-BUCKET" bucket
• B.Access on all buckets that start with "DOC-EXAMPLE-BUCKET" except the "DOC-EXAMPLE-BUCKET/secrets" bucket
• C.Access on all objects in the "DOC-EXAMPLE-BUCKET" bucket except on objects that start with "secrets"
• D.Access on all objects in the "DOC-EXAMPLE-BUCKET" bucket along with access to all S3 actions for objects in the "DOC-EXAMPLE-BUCKET" bucket that start with "secrets"

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