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Vendor: Amazon
Exam Code: DVA-C01
Exam Name: AWS Certified Developer - Associate (DVA-C01)
Certification: AWS Certified Associate
Total Questions: 703 Q&A
Updated on: Dec 08, 2023
Exam retired ,new exam code replace: DVA-C02
An application displays a status dashboard. The status is updated by 1 KB messages from an SQS queue.
Although the status changes infrequently, the Developer must minimize the time between the message arrival in the queue and the dashboard update.
What technique provides the shortest delay in updating the dashboard?
A. Retrieve the messages from the queue using long polling every 20 seconds.
B. Reduce the size of the messages by compressing them before sending.
C. Retrieve the messages from the queue using short polling every 10 seconds.
D. Reduce the size of each message payload by sending it in two parts.
A Developer is developing an application that manages financial transactions. To improve security, multi-factor authentication (MFA) will be required as part of the login protocol. What services can the Developer use to meet these requirements?
A. Amazon DynamoDB to store MFA session data, and Amazon SNS to send MFA codes
B. Amazon Cognito with MFA
C. AWS Directory Service
D. AWS IAM with MFA enabled
An application running on Amazon EC2 instances must access objects within an Amaon S3 busket that are encrypted using server-side encryption using AWS KMS encryption keys (SSE-KMS). The application must have access to the
customer master key (CMK) to decrypt the objects.
Which combination of steps will grant the application access? (Select TWO.)
A. Write an S3 bucket policy that grants the bucket access to the key.
B. Grant access to the key in the IAM EC2 role attached to the application's EC2 instances.
C. Write a key policy that enables IAM policies to grant access to the key.
D. Grant access to the key in the S3 bucket's ACL
E. Create a Systems Manager parameter that exposes the KMS key to the EC2 instances.
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