Amazon Exam BDS-C00 Topic 2 Question 86 Discussion

Actual exam question for Amazon's BDS-C00 exam

Question #: 86
Topic #: 2

You run a web application with the following components Elastic Load Balancer (ELB), 3 Web/Application servers, 1 MySQL RDS database with read replicas, and Amazon Simple Storage Service (Amazon S3) for static content. Average response time for users is increasing slowly. What three CloudWatch RDS metrics will allow you to identify if the database is the bottleneck? Choose 3 answers

AThe number of outstanding IOs waiting to access the disk

BThe amount of write latency

CThe amount of disk space occupied by binary logs on the master.

DThe amount of time a Read Replica DB Instance lags behind the source DB Instance

EThe average number of disk I/O operations per second.

Show Suggested Answer

Suggested Answer: A, B, D

by Kerry at Feb 11, 2024, 01:41 PM

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Wilburn

9 days ago

Sounds good. Now, let's just hope the exam doesn't ask us to explain what a 'binary log' is. That would be a real head-scratcher!

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Nickole

10 days ago

Okay, so it looks like A, B, and D are the three metrics we should focus on. They'll give us a good indication of whether the database is the culprit for the increasing response times.

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Carla

11 days ago

Haha, no kidding. I'd be like, 'is that some kind of fancy dance move?'

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Delmy

12 days ago

E) The average number of disk I/O operations per second - yes, this is a classic metric to monitor for database performance. High I/O could mean the database is the bottleneck.

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