ExamTopics Logo
Mail Us[email protected]
Menu
Amazon Discussions
exam questions

Exam AWS Certified Solutions Architect - Professional SAP-C02 All Questions

View all questions & answers for the AWS Certified Solutions Architect - Professional SAP-C02 exam
Go to Exam

Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 525 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Professional SAP-C02
Question #: 525
Topic #: 1
[All AWS Certified Solutions Architect - Professional SAP-C02 Questions]

A company is hosting an application on AWS for a project that will run for the next 3 years. The application consists of 20 Amazon EC2 On-Demand Instances that are registered in a target group for a Network Load Balancer (NLB). The instances are spread across two Availability Zones. The application is stateless and runs 24 hours a day, 7 days a week.

The company receives reports from users who are experiencing slow responses from the application. Performance metrics show that the instances are at 10% CPU utilization during normal application use. However, the CPU utilization increases to 100% at busy times, which typically last for a few hours.

The company needs a new architecture to resolve the problem of slow responses from the application.

Which solution will meet these requirements MOST cost-effectively?

  • A. Create an Auto Scaling group. Attach the Auto Scaling group to the target group of the NLB. Set the minimum capacity to 20 and the desired capacity to 28. Purchase Reserved Instances for 20 instances.
  • B. Create a Spot Fleet that has a request type of request. Set the TotalTargetCapacity parameter to 20. Set the DefaultTargetCapacityType parameter to On-Demand. Specify the NLB when creating the Spot Fleet.
  • C. Create a Spot Fleet that has a request type of maintain. Set the TotalTargetCapacity parameter to 20. Set the DefaultTargetCapacityType parameter to Spot. Replace the NLB with an Application Load Balancer.
  • D. Create an Auto Scaling group. Attach the Auto Scaling group to the target group of the NLB. Set the minimum capacity to 4 and the maximum capacity to 28. Purchase Reserved Instances for four instances.
Show Suggested Answer Hide Answer
Suggested Answer: D 🗳️
by kupo777 at July 1, 2024, 3:02 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

Chosen Answer:
This is a voting comment (?). It is better to Upvote an existing comment if you don't have anything to add.
Switch to a voting comment New
Submit Cancel
BelloMio
3 weeks, 1 day ago
Selected Answer: A
A But why is option D (min=4, max=28) not ideal, even though it seems efficient? Current complaints are about latency and slow responses during peak usage, not normal usage. That means the important thing is to be able to scale quickly and high enough when needed — and option D doesn’t pre-warm or reserve any of that burst capacity. Only 4 Reserved Instances means: You're paying On-Demand for up to 24 extra instances during every traffic spike. Over 3 years of usage, this is less cost-effective than reserving the always-needed baseline of 20. Latency in scaling: If peak load hits suddenly, starting from 4 → 28 takes time (EC2 warm-up, app boot time, etc). Option A, with 20 already provisioned and reserved, absorbs sudden spikes without lag.
upvoted 1 times
...
AzureDP900
5 months, 3 weeks ago
D is more cost effective solution, most of the time CPU 10% and peak time only we need more instance to serve customer traffic.
upvoted 1 times
AzureDP900
5 months, 1 week ago
The minimum capacity of 4 instances will provide sufficient resources to handle normal traffic, while the maximum capacity of 28 instances can be scaled up to handle busy periods. By purchasing Reserved Instances for four instances, the company can also take advantage of a discounted rate for usage of EC2 instances, which will help reduce costs further.
upvoted 1 times
altonh
2 months, 1 week ago
How do you know that 28 is enough during peak?
upvoted 1 times
...
...
...
Alagong
10 months ago
Selected Answer: D
It should be D
upvoted 1 times
...
kupo777
10 months ago
D D Since the CPU utilization of the instance is 10% during normal application use, a minimum capacity of 4 is required, which is the minimum configuration and most cost-effective.
upvoted 3 times
...
Community vote distribution
A (35%)
C (25%)
B (20%)
Other
Most Voted
A voting comment increases the vote count for the chosen answer by one.

Upvoting a comment with a selected answer will also increase the vote count towards that answer by one. So if you see a comment that you already agree with, you can upvote it instead of posting a new comment.

SaveCancel
exam
Someone Bought Contributor Access for:
SY0-701
London, 1 minute ago