Day 4 Check Reliability and Observability

Check yourself

Ten questions on the two designs from Day 4, the rate limiter and the metrics system. Both sit in front of something they must not damage, and both choose to be approximate rather than slow. Several questions ask you to say where each one puts that approximation.

You will be asked 10 questions drawn from a larger bank, so a second attempt will not be the same paper. Answer from what the designs actually said, not from what sounds sensible in general.