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Question 1 of 4
1. Question
Category: CDA – Development with AWS ServicesA mobile game is using a DynamoDB table named GameScore that keeps track of users and scores. Each item in the table is identified by a partition key (UserId) and a sort key (GameTitle). The diagram below shows how the items in the table are organized:
A developer wants to write a leaderboard application to display the top scores for each game.
How can the developer meet the requirement in the MOST efficient manner?
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Question 2 of 4
2. Question
Category: CDA – DeploymentA developer is instructed to set up a new serverless architecture composed of AWS Lambda, API Gateway, and DynamoDB in a single stack. The new architecture should allow the developer to locally build, test, and debug serverless applications.
Which of the following should the developer use to satisfy the above requirement?
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Question 3 of 4
3. Question
Category: CDA – SecurityA developer is working on an application that will process encrypted files. The application will use AWS KMS to decrypt the files locally before it can proceed with the processing of the files.
Which of the following are valid and secure steps in decrypting data? (Select TWO.)
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Question 4 of 4
4. Question
Category: CDA – Development with AWS ServicesYour Lambda function initializes a lot of external dependencies such as database connections and HTTP endpoints, which are required for data processing. It also fetches static data with a size of 20 MB from a third-party provider over the Internet every time the function is invoked. This adds significant time in the total processing, which greatly affects the performance of their serverless application.
Which of the following should you do to improve the performance of your function?
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