API monitoring and alerting in Rest API - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is API monitoring?

API monitoring is the process of continuously checking an API's performance, availability, and correctness to ensure it works as expected.

beginner

Why is alerting important in API monitoring?

Alerting notifies the team immediately when an API has issues like downtime or slow responses, so they can fix problems quickly and keep users happy.

beginner

Name two common metrics monitored in API monitoring.

Response time (how fast the API replies) and error rate (how often the API returns errors) are two common metrics.

beginner

What is a health check in API monitoring?

A health check is a simple test that calls an API endpoint to confirm it is up and responding correctly.

intermediate

How can alerting thresholds be set for API monitoring?

Thresholds are set by defining limits like maximum response time or error rate; if these limits are crossed, alerts are triggered.

What does API monitoring primarily check?

A API performance and availability

B User interface design

C Database schema

D Server hardware

API monitoring focuses on how well the API performs and if it is available to users.

Which metric indicates how often an API fails to respond correctly?

A CPU usage

B Response time

C Error rate

D Memory usage

Error rate measures the frequency of API errors.

What triggers an alert in API monitoring?

A API documentation updates

B Crossing set thresholds like high response time

C User login

D Code commits

Alerts happen when metrics exceed defined limits.

What is the purpose of a health check endpoint?

A To test if the API is running and responsive

B To update API keys

C To log user activity

D To deploy new API versions

Health checks confirm the API is up and working.

Which tool type is commonly used for API monitoring and alerting?

A Graphic design software

B Text editors

C Version control systems

D Monitoring platforms like Prometheus or Datadog

Monitoring platforms help track API health and send alerts.

Explain how API monitoring helps maintain a good user experience.

Think about how knowing API issues early helps users.

Describe how alerting thresholds work in API monitoring.

Consider what happens when an API is too slow or returns errors.