Review your course work.

Revisit the capstone rubric and explain your decisions aloud. Marking a lesson as read records your progress; it does not grade your work or award a certification. Use these outcomes to choose what to practise next.

• Build a local JSON-lines diagnostic script with explicit invalid-record accounting, deterministic output and a meaningful empty-input case.
• Distinguish byte capacity, inode exhaustion and deleted open files, then choose a recovery action that preserves incident evidence and avoids unrelated paths.
• Read an infrastructure plan as a proposed sequence of state changes, checking stable resource identity, replacement effects and recovery prerequisites.
• Produce a service map, diagnostic ledger, capacity calculation and recovery decision for a booking API using a supplied evidence pack and a self-review rubric.

Keep your exercise notes and compare them with a fresh attempt at the linked questions. Revisit the lessons where your reasoning still needs evidence.