Emphasize that you stay calm, acknowledge the gap honestly, and then demonstrate resourcefulness by outlining how you would find the answer. Show that you view unknown questions as opportunities to learn and collaborate, not as failures.
Pro tip: Interviewers at Meta care more about your problem-solving process than whether you know the answer. Explicitly state your plan to follow up with the correct answer later, and if possible, give a concrete example of when you did this successfully.
Admit you don't know the answer without apologizing excessively. Show confidence that you can find it.
Ask clarifying questions to ensure you understand what's being asked. Break the problem into smaller parts to see if you can reason through it.
Describe specific steps you would take, such as researching documentation, asking a colleague, or prototyping a solution.
Commit to following up with the correct answer and reflect on how you can fill the knowledge gap in the future.
AI-generated suggestions, not part of the candidate's original notes. May be inaccurate — verify before relying on them.