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Amazon (DVA-C01) Exam Questions And Answers page 23

A developer is building an application using an Amazon API Gateway REST API backed by an AWS Lambda function that interacts with an Amazon DynamoDB table. During testing, the developer observes high latency when making requests to the API.

How can the developer evaluate the end-to-end latency and identify performance bottlenecks?
Compute Services Networking and Content Delivery
A developer is building an application using an Amazon API Gateway REST API backed by an AWS Lambda function that interacts with an Amazon DynamoDB table. During testing, the developer observes high latency when making requests to the API.

How can the developer evaluate the end-to-end latency and identify performance bottlenecks?
Compute Services Networking and Content Delivery
A developer is building an AWS Lambda function that will dynamically generate and send a weekly newsletter to 100,000 users. This newsletter contains both static text and images. The developer needs a fast and highly scalable place to store the images that will be hyperlinked in the newsletter.

Where should the developer store these images?
Storage Services Monitoring and Troubleshooting
A developer is building a new application that uses an Amazon DynamoDB table. The specification states that all items that are older than 48 hours must be removed.

Which solution will meet this requirement?
Database Services Monitoring and Troubleshooting
A developer is building a new complex application on AWS. The application consists of multiple microservices hosted on Amazon EC2. The developer wants to determine which microservice adds the most latency while handling a request.

Which method should the developer use to make this determination?
Compute Services Networking and Content Delivery
A Developer is building a serverless application using AWS Lambda and must create a REST API using an HTTP GET method.

What needs to be defined to meet this requirement? (Choose two.)
Networking and Content Delivery Deployment and Management
A developer is building a static, client-side rendered website that is powered by ReactJS. The code has no server-side generated components and does not need to run any programming languages on the server. However, the code serves static HTML, CSS, and JavaScript to the client on each request. The developer's solution to host the website must maximize performance and cost-effectiveness.

Which combination of AWS services or resources should the developer use to meet these requirements?
Storage Services
A Developer is building a three-tier web application that should be able to handle a minimum of 5000 requests per minute. Requirements state that the web tier should be completely stateless while the application maintains session state for the users.

How can session data be externalized, keeping latency at the LOWEST possible value?
Security and Identity Services Deployment and Management
A Developer is building a web application that uses Amazon API Gateway to expose an AWS Lambda function to process requests from clients. During testing, the Developer notices that the API Gateway times out even though the Lambda function finishes under the set time limit.

Which of the following API Gateway metrics in Amazon CloudWatch can help the Developer troubleshoot the issue? (Choose two.)
Networking and Content Delivery Monitoring and Troubleshooting
A developer is building a website that will be hosted in an Amazon S3 bucket with static website hosting enabled. The developer will use Amazon Route 53 for the DNS service and will use an alias record to point the company s domain to the bucket. The developer must redirect one S3 object to a different URL.

What should the developer use so that the redirect will work correctly from a page on the website?
Storage Services Networking and Content Delivery