Architecture · interview question
What does a strong engineer do when reasoning through caching code?
Multiple choiceMediumchapter-18-curatedpremiumarchitecturecaching
cached = cache.get(order_id)
if cached is None:
cached = repo.by_id(order_id)
cache[order_id] = cachedAnswer and explanation
Correct answer
A. Narrate the data shape, the state changes, and the exact rule order step by step.
Why
Interviewers often use simple code to test whether you can reason through execution without bluffing.
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