Lab 9 Quiz

1. What are the "4 Golden Signals" of monitoring?

CPU, Memory, Disk, Network

Latency, Traffic, Errors, Saturation

Uptime, Downtime, Response Time, Throughput

Monitoring, Logging, Tracing, Alerting

2. What is the main difference between monitoring and logging?

Monitoring tracks numeric metrics over time; logging records text-based events

They are the same thing with different names

Monitoring is for production; logging is for development

Logging is automatic; monitoring requires manual setup

3. When should you set up alerts for error rates in production?

Alert on every single error immediately

Alert when error rate exceeds a threshold (e.g., >5-10%)

Never set up alerts; just check manually daily

Only alert if all requests fail

4. What service does AWS provide for automatic monitoring of Lambda functions?

AWS S3

AWS CloudWatch

AWS RDS

AWS DynamoDB

5. What does a Lambda "cold start" represent in CloudWatch Duration metrics?

A critical error that needs immediate fixing

Normal behavior where the first request after idle takes 1-3 seconds for initialization

A billing issue with AWS

When your function runs in a cold climate region

Quiz Complete!