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Exam AWS Certified DevOps Engineer - Professional DOP-C02 topic 1 question 328 discussion

Exam question from Amazon's AWS Certified DevOps Engineer - Professional DOP-C02
Question #: 328
Topic #: 1
[All AWS Certified DevOps Engineer - Professional DOP-C02 Questions]

A company used a lift and shift strategy to migrate a workload to AWS. The company has an Auto Scaling group of Amazon EC2 instances. Each EC2 instance runs a web application, a database, and a Redis cache.

Users are experiencing large variations in the web application's response times. Requests to the web application go to a single EC2 instance that is under significant load. The company wants to separate the application components to improve availability and performance.

Which solution will meet these requirements?

  • A. Create a Network Load Balancer and an Auto Scaling group for the web application. Migrate the database to an Amazon Aurora Serverless database. Create an Application Load Balancer and an Auto Scaling group for the Redis cache.
  • B. Create an Application Load Balancer and an Auto Scaling group for the web application. Migrate the database to an Amazon Aurora database that has a Multi-AZ deployment. Create a Network Load Balancer and an Auto Scaling group in a single Availability Zone for the Redis cache.
  • C. Create a Network Load Balancer and an Auto Scaling group for the web application. Migrate the database to an Amazon Aurora Serverless database. Create an Amazon ElastiCache (Redis OSS) cluster for the cache. Create a target group that has a DNS target type that contains the ElastiCache (Redis OSS) cluster hostname.
  • D. Create an Application Load Balancer and an Auto Scaling group for the web application. Migrate the database to an Amazon Aurora database that has a Multi-AZ deployment. Create an Amazon ElastiCache (Redis OSS) cluster for the cache.
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Suggested Answer: D 🗳️
by matt200 at Dec. 25, 2024, 6:37 a.m.
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matt200
Highly Voted 4 months, 1 week ago
Selected Answer: D
should be D
upvoted 5 times
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Srikantha
Most Recent 4 weeks, 1 day ago
Selected Answer: D
This solution separates the components of the application to improve availability and performance while addressing the specific issues the company is facing, such as variations in response times and heavy load on a single EC2 instance. Key steps in this solution: Application Load Balancer (ALB): Distributes incoming web traffic across multiple EC2 instances in an Auto Scaling group. Ensures high availability and horizontal scaling of the web application. Amazon Aurora (Multi-AZ): Aurora is a fully managed relational database service, and using Multi-AZ deployment ensures high availability and automatic failover. Helps offload the database work from the EC2 instances. Amazon ElastiCache (Redis): Offloads caching from the EC2 instances to ElastiCache (Redis OSS), which is purpose-built for high-performance caching and can handle load more effectively than having Redis run on each EC2 instance. Improves response times by reducing the database load.
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