DVA-C01 Questions and Answers

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AWS Certified Developer - Associate (DVA-C01): DVA-C01

Rating: 4.7

Vendor: Amazon

Certifications: AWS Certified Associate

Exam Name: AWS Certified Developer - Associate (DVA-C01)

Exam Code: DVA-C01

Total Questions: 703 Q&As

Last Updated: Jan 20, 2023

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DVA-C01 Online Practice Questions and Answers

Questions 1

A Developer is building a three-tier web application that should be able to handle a minimum of 5000 requests per minute. Requirements state that the web tier should be completely stateless while the application maintains session state for the users.

How can session data be externalized, keeping latency at the LOWEST possible value?

A. Create an Amazon RDS instance, then implement session handling at the application level to leverage a database inside the RDS database instance for session data storage

B. Implement a shared file system solution across the underlying Amazon EC2 instances, then implement session handling at the application level to leverage the shared file system for session data storage

C. Create an Amazon ElastiCache Memcached cluster, then implement session handling at the application level to leverage the cluster for session data storage

D. Create an Amazon DynamoDB table, then implement session handling at the application level to leverage the table for session data storage

Show Answer
Questions 2

An application is experiencing performance issues based on increased demand. This increased demand is on read-only historical records pulled from an Amazon RDS-hosted database with custom views and queries. A Developer must improve performance without changing the database structure.

Which approach will improve performance and MINIMIZE management overhead?

A. Deploy Amazon DynamoDB, move all the data, and point to DynamoDB.

B. Deploy Amazon ElastiCache for Redis and cache the data for the application.

C. Deploy Memcached on Amazon EC2 and cache the data for the application.

D. Deploy Amazon DynamoDB Accelerator (DAX) on Amazon RDS to improve cache performance.

Show Answer
Questions 3

A developer creates an Amazon S3 bucket to store project status files that are uploaded hourly. The developer also creates an AWS Lambda function that will be used to process the project status files.

What should the developer do to invoke the function with the LEAST amount of AWS infrastructure?

A. Create an Amazon EventBridge (Amazon CloudWatch Events) rule to invoke the function every 5 minutes and scan for new objects.

B. Create an S3 event notification to invoke the function when a new object is created in the S3 bucket.

C. Create an S3 event notification that publishes a message to an Amazon Simple Notification Service (Amazon SNS) topic. Subscribe the function to the SNS topic.

D. Create an S3 event notification that adds a message to an Amazon Simple Queue Service (Amazon SQS) queue. Configure the function to poll the queue.

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