DevOps Engineering on AWS Certification Monitoring, Logging, and Observability on AWS

Question 1

Which AWS service aggregates and visualizes logs from EC2, Lambda, ECS, and other AWS resources?

Accepted Answer

Amazon CloudWatch Logs

Answer

AWS X-Ray

Answer

Amazon Kinesis

Answer

AWS CloudTrail

Question 2

What does AWS X-Ray provide for distributed applications?

Accepted Answer

End-to-end tracing to identify performance bottlenecks and errors across services

Answer

Log aggregation from multiple sources

Answer

Real-time metrics dashboards

Answer

Automated anomaly detection alerts

Question 3

Which CloudWatch feature automatically detects unusual patterns in metrics without requiring you to set static thresholds?

Accepted Answer

CloudWatch Anomaly Detection

Answer

CloudWatch Alarms

Answer

CloudWatch Insights

Answer

CloudWatch Dashboards

Question 4

Which CloudWatch feature allows you to interactively search and analyze log data using a query language?

Accepted Answer

CloudWatch Logs Insights

Answer

CloudWatch Contributor Insights

Answer

CloudWatch Metrics Filter

Answer

CloudWatch Synthetics

Question 5

What is the default metric retention period in Amazon CloudWatch for high-resolution metrics (1-second granularity)?

Accepted Answer

3 hours

Answer

15 days

Answer

1 day

Answer

7 days

Question 6

Which AWS service records API calls made in your AWS account, providing a full audit trail?

Accepted Answer

AWS CloudTrail

Answer

Amazon CloudWatch

Answer

AWS Config

Answer

Amazon GuardDuty