AWS Certified Advanced Networking – Specialty (ANS-C00) — Question 172

Your company wishes to improve the performance of its EC2 instances. They require low latency and high throughput. They are currently deployed on T2.medium.
It is imperative that you experience as little downtime as possible, but cost and performance are most important. How should you accomplish this?

Answer options

• A. Create AMIs from the instances, create new instances on t2.medium, and start those instances in a placement group.
• B. Create AMIs from the instances, deploy the instances as i3.large, and start those instances in a placement group.
• C. Stop the instances and restart them in a placement group.
• D. Add an extra ENI to the instances and team them to provide greater throughput.

Correct answer: B

Explanation

Choosing option B is correct because transitioning to i3.large instances will provide better performance with higher throughput and lower latency than T2.medium instances. Options A and C do not enhance performance effectively since they either maintain the same instance type or do not change the instance type at all. Option D does not address the fundamental need for improved instance performance.