Question: In a multiprocessor system, how does cache coherence ensure correct execution of a program, and which technique is most commonly used? Answer Options: By maintaining

In a multiprocessor system, how does "cache coherence" ensure correct execution of a program, and which technique is most commonly used?
Answer Options:
By maintaining a shared lock on all caches; Snoopy Cache Coherence
By broadcasting changes to all processors; Write-Through Caching
By ensuring all caches see a consistent view of memory; MESI (Modified, Exclusive, Shared, Invalid) Protocol
By invalidating cache data before accessing memory; Direct Mapped Caching

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