System Design Foundations Checkpoint

1. Which requirement most directly constrains architecture?

Latency SLO (P99) UI color scheme Team size Brand name

2. What does P99 latency mean?

3. Back-of-the-envelope estimation is primarily for:

Order-of-magnitude reasoning Exact capacity planning Code optimization UI layout

4. If your latency budget is blown, the most correct action is:

Redesign the critical path Add more logging Ignore and hope Reduce availability target

5. In a read-heavy system, the critical path is primarily the ____ path.

6. Which trade-off often improves latency but risks staleness?

Caching Synchronous replication Strict serialization Encryption at rest