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Exam AWS Certified Solutions Architect - Associate SAA-C03 All Questions

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Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 462 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C03
Question #: 462
Topic #: 1
[All AWS Certified Solutions Architect - Associate SAA-C03 Questions]

A company has an application that processes customer orders. The company hosts the application on an Amazon EC2 instance that saves the orders to an Amazon Aurora database. Occasionally when traffic is high the workload does not process orders fast enough.

What should a solutions architect do to write the orders reliably to the database as quickly as possible?

  • A. Increase the instance size of the EC2 instance when traffic is high. Write orders to Amazon Simple Notification Service (Amazon SNS). Subscribe the database endpoint to the SNS topic.
  • B. Write orders to an Amazon Simple Queue Service (Amazon SQS) queue. Use EC2 instances in an Auto Scaling group behind an Application Load Balancer to read from the SQS queue and process orders into the database.
  • C. Write orders to Amazon Simple Notification Service (Amazon SNS). Subscribe the database endpoint to the SNS topic. Use EC2 instances in an Auto Scaling group behind an Application Load Balancer to read from the SNS topic.
  • D. Write orders to an Amazon Simple Queue Service (Amazon SQS) queue when the EC2 instance reaches CPU threshold limits. Use scheduled scaling of EC2 instances in an Auto Scaling group behind an Application Load Balancer to read from the SQS queue and process orders into the database.
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
by cloudenthusiast at May 18, 2023, 4:28 p.m.
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cloudenthusiast
Highly Voted 1 year, 6 months ago
Selected Answer: B
By decoupling the write operation from the processing operation using SQS, you ensure that the orders are reliably stored in the queue, regardless of the processing capacity of the EC2 instances. This allows the processing to be performed at a scalable rate based on the available EC2 instances, improving the overall reliability and speed of order processing.
upvoted 11 times
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omarshaban
Highly Voted 10 months, 1 week ago
IN MY EXAM
upvoted 7 times
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Guru4Cloud
Most Recent 1 year, 2 months ago
Selected Answer: B
Decoupling the order processing from the application using Amazon SQS and leveraging Auto Scaling to handle the processing of orders based on the workload in the SQS queue is indeed the most efficient and scalable approach. This architecture addresses both reliability and performance concerns during traffic spikes.
upvoted 3 times
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TariqKipkemei
1 year, 5 months ago
Selected Answer: B
Write orders to an Amazon Simple Queue Service (Amazon SQS) queue. Use EC2 instances in an Auto Scaling group behind an Application Load Balancer to read from the SQS queue and process orders into the database.
upvoted 2 times
...
antropaws
1 year, 5 months ago
Selected Answer: B
100% B.
upvoted 2 times
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omoakin
1 year, 5 months ago
BBBBBBBBBB
upvoted 2 times
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