AWS Certified Associate Changed DVA-C02 Questions

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Question 64

An application ingests data from an Amazon Kinesis data stream. The shards in the data stream are set for normal traffic.

During tests for peak traffic, the application ingests data slowly. A developer needs to adjust the data stream to handle the peak traffic.

What should the developer do to meet this requirement MOST cost-effectively?

Options:

Install the Kinesis Producer Library {KPL) to ingest data into the data stream.

Switch to on-demand capacity mode for the data stream. Specify a partition key when writing data to the data stream.

Decrease the amount of time that data is kept in the data stream by using the DecreaseStreamRetention Period API operation.

Increase the shard count in the data stream by using the UpdateShardCount API operation.

Question 65

A company is providing read access to objects in an Amazon S3 bucket for different customers. The company uses 1AM permissions to restrict access to the S3 bucket. The customers can access only their own files.

Due to a regulation requirement, the company needs to enforce encryption in transit for interactions with Amazon S3.

Which solution will meet these requirements?

Options:

Add a bucket policy to the S3 bucket to deny S3 actions when the aws:SecureTransport condition is equal to false.

Add a bucket policy to the S3 bucket to deny S3 actions when the s3:x-amz-acl condition is equal to public-read.

Add an 1AM policy to the 1AM users to enforce the usage of the AWS SDK.

Add an 1AM policy to the 1AM users that allows S3 actions when the s3:x-amz-acl condition is equal to bucket-owner-read.

Question 66

A company runs an application on AWS The application stores data in an Amazon DynamoDB table Some queries are taking a long time to run These slow queries involve an attribute that is not the table's partition key or sort key

The amount of data that the application stores in the DynamoDB table is expected to increase significantly. A developer must increase the performance of the queries.

Which solution will meet these requirements'?

Options:

Increase the page size for each request by setting the Limit parameter to be higher than the default value Configure the application to retry any request that exceeds the provisioned throughput.

Create a global secondary index (GSI). Set query attribute to be the partition key of the index

Perform a parallel scan operation by issuing individual scan requests in the parameters specify the segment for the scan requests and the total number of segments for the parallel scan.

Turn on read capacity auto scaling for the DynamoDB table. Increase the maximum read capacity units (RCUs).

Question 67

A team is developing an application that is deployed on Amazon EC2 instances. During testing, the team receives an error. The EC2 instances are unable to access an Amazon S3 bucket.

Which steps should the team take to troubleshoot this issue? (Select TWO.)