System Design Reliability Checkpoint

1. Golden signals include:

Latency, traffic, errors, saturation CPU and RAM only Marketing metrics Git commits

2. Circuit breakers are used to:

Stop cascading failures Increase payload size Add encryption Improve UI rendering

3. A retry without idempotency risks ____.

4. Load shedding should target:

Non-critical or low-priority requests All requests equally Database writes first always Health checks

5. Rate limits primarily protect against:

Abuse and overload Consistency bugs Schema drift Slow queries only