A developer supports an application that accesses data in an Amazon DynamoDB table One of the item attributes is expirationDate In the timestamp format The application uses this attribute to find items archive them and remove them from
the table based on the timestamp value
The application will be decommissioned soon, and the developer must find another way to implement this functionality The developer needs a solution that will require the least amount of code to write.
Which solution will meet these requirements?
A. Enable TTL on the expirationDate attribute in the table. Create a DynamoDB stream. Create an AWS Lambda function to process the deleted items. Create a DynamoDB trigger for the Lambda function
B. Create two AWS Lambda functions one to delete the items and one to process the items Create a DynamoDB stream Use the Deleteltem API operation to delete the items based on the expirationDate attribute Use the GetRecords API operation to get the items from the DynamoDB stream and process them
C. Create two AWS Lambda functions one to delete the items and one to process the items Create an Amazon EventBridge (Amazon CloudWatch Events) scheduled rule to invoke the Lambda functions Use the Deleteltem API operation to delete the items based on the expirationDate attribute Use the GetRecords API operation to get the items from the DynamoDB table and process them
D. Enable TTL on the expirationDate attribute in the table Specify an Amazon Simple Queue Service (Amazon SQS) dead-letter queue as the target to delete the items Create an AWS Lambda function to process the items.
A developer at a company writes an AWS ClojdForination template. The template refers to subnets that were created by a separate AWS Cloud Formation template that the company's network team wrote. When the developer attempts to launch the stack for the first time, the launch fails.
Which template coding mistakes could have caused this failure? (Select TWO.)
A. The developer's template does not use the Ref intrinsic function to refer to the subnets
B. The developer's template does not use the ImportValue intrinsic function to refer to the subnets
C. The Mappings section of the developer's template does not refer to the subnets.
D. The network team's template does not export the subnets in the Outputs section
E. The network team's template does not export the subnets in the Mappings section
A company requires that AWS Lambda functions written by developers log errors so system administrators can more effectively troubleshoot issues What should the developers implement to meet this need?
A. Publish errors to a dedicated Amazon SQS queue
B. Create an Amazon CloudWatch Events event to trigger based on certain Lambda events.
C. Report errors through logging statements in Lambda function code.
D. Set up an Amazon SNS topic that sends logging statements upon failure
A developer is building an application. The application's front end is developed in JavaScript, and the data is stored in an Amazon DynamoDB table During testing, the application returns an HTTP 5xx error from the strongly consistent reads
to the DynamoDB table; "Internal server error (Service: AmazonDynamoDBv2.
Status Code: 500; Error Code; InternalServerError)."
Which actions should the developer take to mitigate this error? (Select TWO )
A. Avoid strongly consistent reads
B. Use DynamoDB Accelerator (DAX)
C. Increase read/write capacity of DynamoDB to meet the peak load.
D. Retry the failed read requests with exponential backoff
E. Configure DynamoDB auto scaling
A company provides APIs as a service and commits to a service level agreement (SLA) with all its users. To comply with each SLA, what should the company do?
A. Enable throttling limits for each method in Amazon API Getaway.
B. Create a usage plan for each user and request API keys to access the APIs.
C. Enable API rate limiting in Amazon cognito for each user.
D. Enable default throttling limits for each stage after deploying the APIs.
A developer has written an application hosted on Amazon EC2 instances. The application generates and uploads thousands of new objects to an Amazon S3 bucket located in the same AWS region. The size of each object is less than 1 MB. The application is taking too long to run.
How can the performance of the application be improved?
A. Use the S3 Multipart Upload API
B. Use S3 Transfer Acceleration
C. Upload the objects in parallel to Amazon S3
D. Add a random prefix to the object keys
A developer is writing an application to analyze the traffic to a fleet of Amazon EC2 instances The EC2 instances run behind a public Application Load Balancer (ALB). An HTTP server runs on each of the EC2 instances, logging all requests
to a log file.
The developer wants to capture the client public IP addresses. The developer analyzes the log files and notices only the IP address of the ALB
What must the developer do to capture the client public IP addresses in the log file?
A. Add a Host header to the HTTP server log configuration file
B. Install the Amazon CloudWatch Logs agent on each EC2 instance. Configure the agent to write to the log file.
C. Install the AWS X-Ray daemon on each EC2 instance Configure the daemon to write to the log file.
D. Add an X-Forwarded-For header to the HTTP server log configuration file.
A company hosts a client-side web application for one of its subsidiaries on Amazon S3. The web application can be accessed through Amazon CloudFront from https://www.example.com. After a successful rollout, the company wants to host three more client-side web applications for its remaining subsidiaries on three separate S3 buckets.
To achieve this goal, a developer moves all the common JavaScript files and web fonts to a central S3 bucket that serves the web applications. However, during testing, the developer notices that the browser blocks the JavaScript files and web fonts.
What should the developer do to prevent the browser from blocking the JavaScript files and web fonts?
A. Create four access points that allow access to the central S3 bucket. Assign an access point to each web application bucket.
B. Create a bucket policy that allows access to the central S3 bucket. Attach the bucket policy to the central S3 bucket.
C. Create a cross-origin resource sharing (CORS) configuration that allows access to the central S3 bucket. Add the CORS configuration to the central S3 bucket.
D. Create a Content-MD5 header that provides a message integrity check for the central S3 bucket. insert the Content-MD5 header for each web application request.
When using the AWS Encryption SDK now does the developer keep track of the data encryption keys used to encrypt data?
A. The developer must manually Keep track of the data encryption keys used for each data object
B. The SDK encrypts the data encryption key and stores it (encrypted) as part of the returned ciphertext
C. The SDK stores the data encryption keys automatically m Amazon S3
D. The data encryption key is stored in the userdata for the EC2 instance
An application is experiencing performance issues based on increased demand. This increased demand is on read-only historical records pulled from an Amazon RDS-hosted database with custom views and queries. A developer improve performance without changing the database structure.
Which approach will improve performance and MINIMIZE management overhead?
A. Deploy Amazon DynamoDB, move all the data, and point to DynamoDB.
B. Deploy Amazon ElasticCache for Redis and cache the data for the application.
C. Deploy Memcached on Amazon EC2 and cache the data for the application.
D. Deploy Amazon DynamoDB Accelerator (DAX) on Amazon RDS to improve cache performance
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