GUIDED PRACTICE

Quiz: Multi-step Processes

Five scenario questions with explanations and a visual checkpoint.

A AceYourInterviews editorial · 8 min study

Visual checkpoint

Use this diagram to locate the state and failure boundaries tested by the questions. Answer all five questions before revealing feedback; the result is a study checkpoint rather than a certification.

Durable workflow → Inventory hold (step 1); Inventory hold → Payment authorize (step 2); Payment authorize → Confirm order (success); Payment authorize → Release / refund (failure / cancellation); Release / refund → Repair queue (unresolved); Repair queue → Durable workflow (reconcile) — Scroll to inspect the diagram, or open it at full size.

Figure — Durable workflow → Inventory hold (step 1); Inventory hold → Payment authorize (step 2); Payment authorize → Confirm order (success); Payment authorize → Release / refund (failure / cancellation); Release / refund → Repair queue (unresolved); Repair queue → Durable workflow (reconcile)

Review your reasoning

After checking answers, identify the incorrect assumption behind each missed question. Rewrite it as a rule with a concrete exception or failure case, then return to the lesson.

Why is a refund not a rollback of the original charge?

8:00Self-guided practice timer

The timer resets when you leave this page. Save your design separately.

Your challenge

Why is a refund not a rollback of the original charge?

Your design draft

Clarify assumptions, explain your approach, and test the difficult cases. Save your draft, then compare it with the study notes.

Read study notes

Self-review checklist

I clarified the requirements and constraints.I explained why the approach works.I considered failures, boundaries, and alternatives.I identified one improvement for my next attempt.

Self-guided practice. Automated AI feedback and code execution are not connected.