AWS DevOps Monitoring and Logging 2

Question 1

A DevOps team wants to automatically remediate EC2 instances that fail health checks without human intervention. Which AWS service combination best achieves this?

Accepted Answer

CloudWatch Alarms + EventBridge + Systems Manager Automation

Answer

CloudWatch Alarms detect the failure, EventBridge routes the event, and Systems Manager Automation runbooks execute the remediation steps.

Question 2

Which CloudWatch feature allows you to search, analyze, and visualize log data interactively using a purpose-built query language?

Accepted Answer

CloudWatch Log Insights

Answer

CloudWatch Log Insights provides an interactive query interface with its own query language to analyze log data in real time.

Question 3

A pipeline deployment causes elevated 5xx errors. The team needs to correlate ALB access logs with Lambda function logs across a 15-minute window. Which tool provides the best cross-service log correlation?

Accepted Answer

AWS X-Ray with trace ID propagation

Answer

X-Ray propagates trace IDs across services, enabling end-to-end correlation of requests through ALB, Lambda, and other components.

Question 4

What is the maximum retention period you can configure for a CloudWatch Log Group?

Accepted Answer

Logs are retained indefinitely by default unless a retention policy is set

Answer

By default, CloudWatch Log Groups retain logs indefinitely; you must explicitly set a retention policy to limit storage duration.

Question 5

A company uses AWS CodePipeline and wants pipeline execution metrics (success rate, duration) to appear in a central dashboard. Which approach is most operationally efficient?

Accepted Answer

Use CodePipeline EventBridge events to push custom metrics to CloudWatch, then build a dashboard

Answer

EventBridge captures CodePipeline state-change events; a Lambda function can extract duration and status and publish custom CloudWatch metrics for dashboarding.

AWS Practice Test

AWS Practice Test

AWS DevOps Monitoring and Logging 2