Java Threading · interview question
In a distributed store, where must the final inventory correctness rule live?
Multiple choiceHardchapter-15-curatedpremiumjava-threadingrace-conditions
Answer and explanation
Correct answer
B. At the shared truth boundary, such as the database or a shared coordination system
Why
Once multiple app instances are involved, process-local coordination is not enough. The final invariant must be enforced where all contenders meet, usually the database or another shared system.
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