Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 425 discussion

Exam question from Amazon's AWS Certified Solutions Architect - Associate SAA-C02

Question #: 425
Topic #: 1

[All AWS Certified Solutions Architect - Associate SAA-C02 Questions]

An application calls a service run by a vendor. The vendor charges based on the number of calls. The finance department needs to know the number of calls that are made to the service to validate the billing statements.
How can a solutions architect design a system to durably store the number of calls without requiring changes to the application?

A. Call the service through an internet gateway.
B. Decouple the application from the service with an Amazon Simple Queue Service (Amazon SQS) queue.
C. Publish a custom Amazon CloudWatch metric that counts calls to the service.
D. Call the service through a VPC peering connection.

Show Suggested Answer

Suggested Answer: C 🗳️
There are 2 main types of monitoring you can do on AWS EC2 Instances as follows:
Basic Monitoring for Amazon EC2 instances: Seven pre-selected metrics at five-minute frequency and three status check metrics at one-minute frequency, for no additional charge.
Detailed Monitoring for Amazon EC2 instances: All metrics available to Basic Monitoring at one-minute frequency, for an additional charge. Instances with Detailed
Monitoring enabled allows data aggregation by Amazon EC2 AMI ID and instance type.
Reference:
https://datanextsolutions.com/blog/how-to-collect-custom-metrics-from-aws-ec2-instances/

by jkwek at May 1, 2021, 7 a.m.

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jkwek

Highly Voted 3 years, 8 months ago

Answer is C. https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/working_with_metrics.html Metrics are data about the performance of your systems. By default, many services provide free metrics for resources (such as Amazon EC2 instances, Amazon EBS volumes, and Amazon RDS DB instances). You can also enable detailed monitoring for some resources, such as your Amazon EC2 instances, or publish your own application metrics. Amazon CloudWatch can load all the metrics in your account (both AWS resource metrics and application metrics that you provide) for search, graphing, and alarms.

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