Chaos engineering basics in Microservices - Cheat Sheet & Quick Revision

Recall & Review

beginner

What is chaos engineering?

Chaos engineering is the practice of intentionally introducing failures into a system to test its resilience and improve its ability to handle unexpected problems.

beginner

Why do we perform chaos engineering in microservices?

Because microservices are distributed and complex, chaos engineering helps find hidden weaknesses before real failures happen, ensuring the system stays reliable.

beginner

Name a common type of failure introduced in chaos engineering experiments.

Examples include shutting down a service, increasing latency, or causing network partitions to see how the system reacts.

beginner

What is the main goal of chaos engineering?

The main goal is to build confidence that the system can withstand turbulent conditions and continue to operate correctly.

intermediate

How should chaos experiments be conducted safely?

Start small, run experiments in controlled environments or during low traffic, monitor carefully, and have quick rollback plans.

What does chaos engineering primarily test in a system?

A System resilience to failures

B User interface design

C Database schema correctness

D Code style consistency

Chaos engineering focuses on testing how well a system handles failures and unexpected conditions.

Which of the following is NOT a typical chaos experiment?

A Changing user passwords

B Shutting down a microservice

C Introducing network delays

D Simulating high CPU usage

Changing user passwords is unrelated to chaos engineering experiments.

When is the best time to run chaos experiments?

A During peak traffic without monitoring

B In a controlled environment with monitoring

C Without informing the team

D Only after system failure

Experiments should be done carefully with monitoring to avoid unintended damage.

What is a key benefit of chaos engineering in microservices?

A Increases deployment speed

B Reduces code complexity

C Enhances UI responsiveness

D Improves system resilience

Chaos engineering helps improve how well microservices handle failures.

Which statement best describes a chaos engineering experiment?

A Randomly breaking parts of the system without observation

B Monitoring system logs passively

C Carefully planned failure injection to test system behavior

D Writing unit tests for code functions

Chaos experiments are planned and observed to learn about system weaknesses.

Explain what chaos engineering is and why it is important for microservices.

Think about how breaking things on purpose helps systems get stronger.

Describe best practices to safely conduct chaos engineering experiments.

Consider how to avoid causing real harm while testing failures.