CDC / RDC · All levels
CDC/RDC Interview Q&A Bank (Expanded)
Cross-topic senior CDC/RDC questions and answer patterns.
Q&A Bank
How do you distinguish CDC structural clean from protocol correctness?
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Q: How do you distinguish CDC structural clean from protocol correctness?
A strong answer states mechanism, metric, evidence, and decision rationale.
Trap: giving tool command lists without risk framing.When would you reject a CDC waiver even under tapeout pressure?
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Q: When would you reject a CDC waiver even under tapeout pressure?
A strong answer states mechanism, metric, evidence, and decision rationale.
Trap: giving tool command lists without risk framing.How do you prove async FIFO full/empty logic is robust?
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Q: How do you prove async FIFO full/empty logic is robust?
A strong answer states mechanism, metric, evidence, and decision rationale.
Trap: giving tool command lists without risk framing.What makes reset release safe across multiple domains?
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Q: What makes reset release safe across multiple domains?
A strong answer states mechanism, metric, evidence, and decision rationale.
Trap: giving tool command lists without risk framing.How do you triage reconvergence warnings efficiently?
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Q: How do you triage reconvergence warnings efficiently?
A strong answer states mechanism, metric, evidence, and decision rationale.
Trap: giving tool command lists without risk framing.Q&A drill guide
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INTENT -> FAILURE MODE -> EVIDENCE -> FIX/WAIVER -> REGRESSIONSketch while answering
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INTERVIEW FLOW
classify -> explain mechanism -> propose fix -> state regressionKey takeaways
State crossing class, assumptions, and owner with every issue.
Run structural and dynamic regressions after each fix.
Common pitfalls
Treating all warnings as equivalent risk.
Waiving issues without containment evidence.
Skipping reset and reconvergence stress after CDC fixes.