If a message is retrieved from a queue in Amazon SQS, how long is the message inaccessible to other users by default?

• A.0 seconds
• B.1 hour
• C.1 day
• D.forever
• E.30 seconds

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A developer is using Amazon DynamoDB to store application data . The developer wants to further improve application performance by reducing response limes for read and write operations.
Which DynamoDB feature should be used to meet these requirement?

• A.Amazon DynamoDB Streams
• B.Amazon DynamoDB Accelerator
• C.Amazon DynamoDB global tables
• D.Amazon DynamoDB transactions

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A company maintains a REST service using Amazon API Gateway and the API Gateway native API key validation. The company recently launched a new registration page, which allows users to sign up for the service. The registration page creates a new API key using CreateApiKey and sends the new key to the user.
When the user attempts to call the API using this key, the user receives a 403 Forbidden error. Existing users are unaffected and can still call the API.
What code updates will grant these new users access to the API?

• A.The createDeployment method must be called so the API can be redeployed to include the newly created API key.
• B.The importApiKeys method must be called to import all newly created API keys into the current stage of the API.
• C.The createUsagePlanKey method must be called to associate the newly created API key with the correct usage plan.
• D.The updateAuthorizer method must be called to update the API's authorizer to include the newly created API key.

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A Developer has been asked to make changes to the source code of an AWS Lambda function. The function is managed using an AWS CloudFormation template. The template is configured to load the source code from an Amazon S3 bucket. The Developer manually created a .ZIP file deployment package containing the changes and put the file into the correct location on Amazon S3. When the function is invoked, the code changes have not been applied.
What step is required to update the function with the changes?

• A.Delete the .ZIP file on S3, and re-upload by using a different object key name.
• B.Update the CloudFormation stack with the correct values for the function code properties S3Bucket, S3Key, or S3ObjectVersion.
• C.Ensure that the function source code is base64-encoded before uploading the deployment package to S3.
• D.Modify the execution role of the Lambda function to allow S3 access permission to the deployment package .ZIP file.

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When uploading an object, what request header can be explicitly specified in a request to Amazon S3 to encrypt object data when saved on the server side?

• A.x-amz-security-token
• B.Content-MD5
• C.x-amz-storage-class
• D.x-amz-server-side-encryption

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