Amazon Exam SOA-C02 Topic 4 Question 115 Discussion

Actual exam question for Amazon's SOA-C02 exam

Question #: 115
Topic #: 4

A company runs hundreds of Amazon EC2 instances in a single AWS Region. Each EC2 instance has two attached 1 GiB General Purpose SSD (gp2) Amazon Elastic Block Store (Amazon EBS) volumes. A critical workload is using all the available IOPS capacity on the EBS volumes.

According to company policy, the company cannot change instance types or EBS volume types without completing lengthy acceptance tests to validate that the company's applications will function properly. A SysOps administrator needs to increase the I/O performance of the EBS volumes as quickly as possible.

Which action should the SysOps administrator take to meet these requirements?

AIncrease the size of the 1 GiB EBS volumes.

BAdd two additional elastic network interfaces on each EC2 instance.

CTurn on Transfer Acceleration on the EBS volumes in the Region.

DAdd all the EC2 instances to a cluster placement group.

Show Suggested Answer

Suggested Answer: A

Increasing the size of the 1 GiB EBS volumes will increase the IOPS capacity of the volumes, which will improve the I/O performance of the EBS volumes. This option does not require any changes to the instance types or EBS volume types, so it can be done quickly without the need for lengthy acceptance tests to validate that the company's applications will function properly.

https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/requesting-ebs-volume-modifications.html

by Vincent at May 04, 2025, 10:43 PM

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Kenny

7 days ago

Adding all the EC2 instances to a cluster placement group might be the best option to improve I/O performance quickly.

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Darci

8 days ago

You know, this whole situation reminds me of that time I tried to max out my grandma's AOL account. It didn't end well, but at least I learned a thing or two about internet performance.

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Lashawn

13 days ago

I believe turning on Transfer Acceleration on the EBS volumes in the Region could be a quick solution to increase performance.

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Dewitt

15 days ago

Oof, a cluster placement group? That's overkill for this scenario. The company policy says they can't change the instance types, so that's not an option.

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Ronna

17 days ago

Adding those extra network interfaces won't do anything to improve the EBS performance. That's just going to add unnecessary complexity.

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Cheryl

19 days ago

I disagree, adding two additional elastic network interfaces on each EC2 instance might help improve I/O performance.

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Stefany

28 days ago

I think the SysOps administrator should increase the size of the EBS volumes.

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Micheline

1 months ago

Hold on, I'm not sure that's the right approach. Transferring acceleration might be a quicker way to improve the I/O performance without changing the instance or volume types.

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Freida

11 days ago

Let's give it a try and see if it helps with the workload.

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Maryann

25 days ago

That's a good idea, it might be quicker than changing instance or volume types.

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Kathryn

1 months ago

We could try transferring acceleration to improve I/O performance.

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Lashawnda

2 months ago

Increasing the EBS volume size should help boost the IOPS, as larger volumes generally have higher performance. This sounds like the most straightforward solution to me.

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Gwenn

8 days ago

C: Let's go ahead and do that to meet the requirements.

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Javier

23 days ago

B: I agree, that should help improve the I/O performance quickly.

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Sherrell

1 months ago

A: Increase the size of the 1 GiB EBS volumes.

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