Phase 15 — Exercises: Disaggregated Serving

Work these after the labs. They escalate from "explain it" to "design it" — staff-level means you can do the last ones cold.

1. Quantify when disaggregation beats co-location (interference vs transfer cost).
2. What exactly must transfer between P and D, and in what layout?
3. How does the scheduler represent 'waiting for remote KV'?

Self-grading

For each: could you (a) explain it to a teammate in 2 minutes, and (b) point to the exact upstream/ file that proves your answer? If not, re-read the matching anchor in 01-deep-dive.md.