Exam AWS-SysOps All Questions

View all questions & answers for the AWS-SysOps exam

Exam AWS-SysOps topic 1 question 717 discussion

Exam question from Amazon's AWS-SysOps

Question #: 717
Topic #: 1

A SysOps Administrator is responsible for a legacy, CPU-heavy application. The application can only be scaled vertically. Currently, the application is deployed on a single t2.large Amazon EC2 instance. The system is showing 90% CPU usage and significant performance latency after a few minutes.
What change should be made to alleviate the performance problem?

A. Change the Amazon EBS volume to Provisioned IOPs.
B. Upgrade to a compute-optimized instance.
C. Add additional t2.large instances to the application.
D. Purchase Reserved Instances.

Show Suggested Answer

Suggested Answer: C 🗳️

by lui at Nov. 18, 2019, 2:23 p.m.

Disclaimers:

- ExamTopics website is not related to, affiliated with, endorsed or authorized by Amazon.
- Trademarks, certification & product names are used for reference only and belong to Amazon.

Comments

Submit Cancel

lui

Highly Voted 3 years, 3 months ago

should be B.

upvoted 19 times

fromnowhere

2 years, 7 months ago

that would be vertical scaling which is not possible in this scenario

upvoted 1 times

...

Madaan

Highly Voted 3 years ago

Selected Answer: C

Donm't know why everyone is saying B when the question specifically mentions that vertical scaling is not possible. Or have I misunderstood anything?

upvoted 5 times

aidenpearce01

2 years, 9 months ago

just change the instance type but keep the same CPU and MEMORY, i think

upvoted 1 times

...

e45af42

Most Recent 6 months, 3 weeks ago

Selected Answer: B

Why so much confusion? B is the answer, we have scenario with vertical scaling only.

upvoted 1 times

...

albert_kuo

1 year, 5 months ago

Selected Answer: B

The current t2.large instance type may not be sufficient to handle the CPU-intensive workload and is exhibiting high CPU usage and performance latency. Upgrading to a compute-optimized instance type, such as the C5 or M5 instance family, would provide higher CPU performance and better handle the workload requirements. Compute-optimized instances are designed for workloads that require a high amount of computational power and can deliver a higher CPU-to-memory ratio. These instances offer superior performance for CPU-intensive applications and are a suitable choice for alleviating performance issues in this scenario.

upvoted 1 times

albert_kuo

1 year, 4 months ago

keyword is "The application can only be scaled vertically"

upvoted 1 times

...

task_7

1 year, 10 months ago

Selected Answer: B

t is general purpose, changing it compute optimized will helps

upvoted 1 times

...

gulu73

1 year, 10 months ago

Selected Answer: B

answer is B

upvoted 1 times

...

softarts

2 years, 4 months ago

I saw this question somewhere, should be "The application can only be scaled vertically" hence the answer is B

upvoted 1 times

...

FHU

2 years, 9 months ago

Letter (A) is the correct answer. This is a very tricky question. I don't know why you guys disconsidered letter (A). My observations in real webservers says that when we have high DISK latency, processing individual tasks could take much much longer. In high concurrency systems, a task taking longer means that you will end up having more parallel tasks being executed at the same time. With such a scenario, with parallel tasks being accumulated because of disk latency, the CPU usage will increase. So, disk latency could be a real CPU killer. Letter (B) is a good solution, but it is vertical scalling. The question states that it can not be vertical scalled. So, I am taking this out.

upvoted 2 times

Akinwaleo

1 year, 7 months ago

Am I reading the question wrongly?...it says "The application CAN ONLY BE SCALED VERTICALLY."

upvoted 1 times

...

asfsdfsdf

2 years, 10 months ago

Selected Answer: C

Please read the question again: "Vertical scaling is not possible with this application. " Hence its not an option to change the instance type! Since its a CPU issue A and D are irrelevant - Will go with C.

upvoted 4 times

...