DVA-C02 Exam Dumps - AWS Certified Developer - Associate

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Question # 33

An organization is using Amazon CloudFront to ensure that its users experience low-latency access to its web application. The organization has identified a need to encrypt all traffic between users and CloudFront, and all traffic between CloudFront and the web application.

How can these requirements be met? (Select TWO)

Use AWS KMS t0 encrypt traffic between cloudFront and the web application.

Set the Origin Protocol Policy to "HTTPS Only".

Set the Originâ€™s HTTP Port to 443.

Set the Viewer Protocol Policy to "HTTPS Only" or Redirect HTTP to HTTPS"

Enable the CloudFront option Restrict Viewer Access.

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Question # 34

A developer wants to expand an application to run in multiple AWS Regions. The developer wants to copy Amazon Machine Images (AMIs) with the latest changes and create a new application stack in the destination Region. According to company requirements, all AMIs must be encrypted in all Regions. However, not all the AMIs that the company uses are encrypted.

How can the developer expand the application to run in the destination Region while meeting the encryption requirement?

Create new AMIs, and specify encryption parameters. Copy the encrypted AMIs to the destination Region. Delete the unencrypted AMIs.

Use AWS Key Management Service (AWS KMS) to enable encryption on the unencrypted AMIs. Copy the encrypted AMIs to the destination Region.

Use AWS Certificate Manager (ACM) to enable encryption on the unencrypted AMIs. Copy the encrypted AMIs to the destination Region.

Copy the unencrypted AMIs to the destination Region. Enable encryption by default in the destination Region.

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Question # 35

A developer is integrating Amazon ElastiCache in an application. The cache will store data from a database. The cached data must populate real-time dashboards. Which caching strategy will meet these requirements?

A read-through cache

A write-behind cache

A lazy-loading cache

A write-through cache

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Question # 36

A developer is using AWS CodeDeploy to launch an application onto Amazon EC2 instances. The application deployment fails during testing. The developer notices an IAM_ROLE_PERMISSIONS error code in Amazon CloudWatch logs.

What should the developer do to resolve the error?

Ensure that the deployment group is using the correct role name for the CodeDeploy service role.

Attach the AWSCodeDeployRoleECS policy to the CodeDeploy service role.

Attach the AWSCodeDeployRole policy to the CodeDeploy service role.

Ensure the CodeDeploy agent is installed and running on all instances in the deployment group.

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Question # 37

A company built an online event platform For each event the company organizes quizzes and generates leaderboards that are based on the quiz scores. The company stores the leaderboard data in Amazon DynamoDB and retains the data for 30 days after an event is complete The company then uses a scheduled job to delete the old leaderboard data

The DynamoDB table is configured with a fixed write capacity. During the months when many events occur, the DynamoDB write API requests are throttled when the scheduled delete job runs.

A developer must create a long-term solution that deletes the old leaderboard data and optimizes write throughput

Which solution meets these requirements?

Configure a TTL attribute for the leaderboard data

Use DynamoDB Streams to schedule and delete the leaderboard data

Use AWS Step Functions to schedule and delete the leaderboard data.

Set a higher write capacity when the scheduled delete job runs

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Question # 38

A company has an online web application that includes a product catalog. The catalog is stored in an Amazon S3 bucket that is named DOC-EXAMPLE-BUCKET. The application must be able to list the objects in the S3 bucket and must be able to download objects through an 1AM policy.

Which policy allows MINIMUM access to meet these requirements?

Option A

Option B

Option C

Option D

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Question # 39

A developer is building a microservices-based application by using Python on AWS and several AWS services The developer must use AWS X-Ray The developer views the service map by using the console to view the service dependencies. During testing, the developer notices that some services are missing from the service map

What can the developer do to ensure that all services appear in the X-Ray service map?

Modify the X-Ray Python agent configuration in each service to increase the sampling rate

Instrument the application by using the X-Ray SDK for Python. Install the X-Ray SDK for all the services that the application uses

Enable X-Ray data aggregation in Amazon CloudWatch Logs for all the services that the application uses

Increase the X-Ray service map timeout value in the X-Ray console

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Question # 40

A company has an application that uses Amazon Cognito user pools as an identity provider. The company must secure access to user records. The company has set up multi-factor authentication (MFA). The company also wants to send a login activity notification by email every time a user logs in.

What is the MOST operationally efficient solution that meets this requirement?

Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Add an Amazon API Gateway API to invoke the function. Call the API from the client side when login confirmation is received.

Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Add an Amazon Cognito post authentication Lambda trigger for the function.

Create an AWS Lambda function that uses Amazon Simple Email Service (Amazon SES) to send the email notification. Create an Amazon CloudWatch Logs log subscription filter to invoke the function based on the login status.

Configure Amazon Cognito to stream all logs to Amazon Kinesis Data Firehose. Create an AWS Lambda function to process the streamed logs and to send the email notification based on the login status of each user.

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