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Amazon AWS Certified Developer - Associate Sample Questions (Q205-Q210):

NEW QUESTION # 205
A developer is designing a game that stores data in an Amazon DynamoDB table. The partition key of the table is the country of the player. After a sudden increase in the number of players in a specific country, the developer notices ProvisionedThroughputExceededException errors.
What should the developer do to resolve these errors?

Answer: D

Explanation:
The ProvisionedThroughputExceededException error in DynamoDB occurs when your application exceeds the provisioned read or write capacity for a specific partition. In this case, the partition key is the country of the player, and it appears that a sudden increase in the number of players from a specific country is causing the partition to become "hot," meaning that the requests for that partition are exceeding the available throughput.
To resolve this issue, the developer should consider revising the primary key to spread the load more evenly across partitions. Using more unique identifiers for the partition key, such as adding an additional attribute (e.g., player ID, country + player ID, or a timestamp) can help distribute the data more evenly, preventing any single partition from becoming a hotspot.


NEW QUESTION # 206
A developer is implementing an AWS Lambda function that will be invoked when an object is uploaded to Amazon S3. The developer wants to test the Lambda function in a local development machine before publishing the function to a production AWS account.
Which solution will meet these requirements with the LEAST operational overhead?

Answer: C


NEW QUESTION # 207
A developer is building two microservices that use an Amazon SQS queue to communicate. The messages that the microservices send to one another contain sensitive information. The developer must ensure the messages are stored and are encrypted at rest.
Which solution will meet these requirements?

Answer: C

Explanation:
The requirement is specifically encryption at rest for messages stored in Amazon SQS. The AWS-native way to accomplish this is to enable server-side encryption (SSE) on the SQS queue. When SSE is enabled, SQS encrypts messages as they are stored and decrypts them when they are retrieved, using keys from AWS Key Management Service (AWS KMS) (either an AWS managed key for SQS or a customer managed KMS key). This provides transparent encryption at rest without requiring application-level cryptography changes.
Option C correctly states to enable SSE on the queue. Once enabled, any message content placed in the message body will be protected at rest in SQS. (Message attributes are also stored by SQS; however, the key requirement is to ensure the messages are encrypted at rest, and enabling SSE at the queue level is the control that enforces this.) Option A (aws:SecureTransport) enforces encryption in transit by requiring HTTPS/TLS, not encryption at rest. It is a good security control, but it does not satisfy the at-rest requirement by itself. Option B is incorrect because SSE is not something the sender "sets within the message"; SSE is configured on the queue, not per- message by the microservices. Option D suggests putting sensitive data in attributes, which does not add security; it can actually increase exposure because attributes are often used for routing/filters and may be logged or surfaced in monitoring. The right pattern is to keep sensitive data where intended and rely on queue- level SSE to encrypt stored messages.
Therefore, enabling SQS SSE on the queue (C) meets the requirement to ensure messages are encrypted at rest while stored in SQS.


NEW QUESTION # 208
A developer maintains applications that store several secrets in AWS Secrets Manager. The applications use secrets that have changed over time. The developer needs to identify required secrets that are still in use. The developer does not want to cause any application downtime.
What should the developer do to meet these requirements?

Answer: B

Explanation:
Solution (B) is the best option to meet the developer's requirements. It allows the developer to identify necessary secrets that are still in use without causing any application downtime.


NEW QUESTION # 209
A developer is designing a serverless application for a game in which users register and log in through a web browser The application makes requests on behalf of users to a set of AWS Lambda functions that run behind an Amazon API Gateway HTTP API The developer needs to implement a solution to register and log in users on the application's sign-in page. The solution must minimize operational overhead and must minimize ongoing management of user identities.
Which solution will meet these requirements'?

Answer: B

Explanation:
Explanation
https://docs.aws.amazon.com/cognito/latest/developerguide/signing-up-users-in-your-app.html


NEW QUESTION # 210
......

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