Exam AWS Certified Solutions Architect - Professional SAP-C02 topic 1 question 170 discussion

Not B because, Trusted Advisor is available for Enterprise support only which is not cheap and the SA needs to cost optimize here. CPU, memory, and network relate to Compute so D for sure. C will enable to know how much actual memory/CPU is needed for instances and SA can provision based on cw logs

I would go for CD B is more "CPU utilization C is more "memory metrics" D is more CPU and network metrics then CD is more comprehensive while DB miss the "memory" part

Correct answer: C and D "Memory utilization metrics are analyzed for the following resources: EC2 instances with the CloudWatch agent that's installed on them."

NOT Option B - To have Compute Optimizer analyze the memory utilization metric of your instances, install the CloudWatch agent on your instances. Enabling Compute Optimizer to analyze memory utilization data for your instances provides an additional measurement of data that further improves Compute Optimizer's recommendations. https://docs.aws.amazon.com/compute-optimizer/latest/ug/metrics.html#ec2-metrics-analyzed

Option C and D

The solutions architect should take the following two steps to meet the requirements: Configure AWS Compute Optimizer in the AWS account to receive findings and optimization recommendations. Compute Optimizer uses machine learning to analyze historical utilization metrics and provides recommendations to reduce costs and increase workload performance by recommending the optimal instance types. Turn on AWS Trusted Advisor and review any "Low Utilization Amazon EC2 Instances" recommendations. Trusted Advisor checks for underutilized instances and provides recommendations to right-size them, helping optimize costs.

C and D

AWS Trusted Advisor and AWS Compute Optimizer can both provide recommendations for right-sizing EC2 instances without requiring the installation of the CloudWatch agent or the collection of memory metrics. The CloudWatch agent is primarily used for monitoring EC2 instances and collecting data for performance analysis. While it can be helpful to collect memory metrics for EC2 instances, it is not required for cost-optimizing and appropriately sizing them.

AWS Compute Optimizer recommends optimal AWS resources for your workloads to reduce costs and improve performance by using machine learning to analyze historical utilization metrics.

Cloud Watch Agent for memory metric & Compute Optimizer for recommendations

cd for sure

A & B will incur more cost. CD are correct

CD is right

trusted advisor does not take memory in consideration hence CD is right answer. https://docs.aws.amazon.com/awssupport/latest/user/cost-optimization-checks.html

D,OK.. but, why not B trusted advisor rather than C cloudwatch ?

CD according to https://docs.aws.amazon.com/compute-optimizer/latest/ug/metrics.html

For Memory - CLoudwatch and Compute Optimizer