Skip to content
AI Security

Interview question · How LLM Systems Work

Your application routes requests between several models and falls back when one fails. What are the security risks?

A fallback changes the real request path. Review recipient eligibility, state compatibility and uncertain actions before trying another endpoint.

mediumNewUpdated Nov 2026

A fallback changes the real request path. Review recipient eligibility, state compatibility and uncertain actions before trying another endpoint.

Make your first attempt

What would you say before reading the answer?

  1. 01 State the assumptions your answer depends on.
  2. 02 Explain the mechanism and choose a control.
  3. 03 Name a condition that would change your decision.

The worked answer includes an approach, scoring criteria and follow-up questions. Compare the reasoning with your own.

10 answers per topic instead of 5, plus saved progress and bookmarks · costs nothingor unlock all 529 remaining answers · $25

Every worked answer in all 17 topics, every lesson in every course, the full concept curriculum, the complete practice-test bank, and the downloadable security field guides.

6 months · One payment · No auto-renewal

What if · the follow-ups in this answer

The answer works through 5 follow-ups like an interviewer would

A fictional museum routes staff research through A. When A fails, the system can try B or C. B is public-data-only. C is staff-approved but uses a different conversation-state protocol.

  1. What if A returns a transport timeout?
  2. What if C rejects A’s opaque continuity object?
  3. What if A refused a request that appears legitimate?
  4. What if a catalog update was accepted before A’s connection ended?
  5. How would you exercise the fallback policy?

Each rung has a nudge, a model answer, the principle that carries over and the weak answer to avoid. Premium opens every answer and ladder.

UP NEXT ON YOUR JOURNEY
Next in this trackWhich LLM API parameters and features have security implications if you expose them to users?Next in this trackWhat can interpretability realistically do for AI security today?Next in this trackWhy do you want to move from traditional security into AI security, and what transfers?
DISCUSSION · 0

No comments yet. Share a correction or a different way to answer it.