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On which principle is the effectiveness of cache memory mainly based?

Answer and explanation

Correct answer: Frequently or recently used data may be used again

The governing concept is locality of reference. Temporal locality means that data or instructions used recently are likely to be used again soon; spatial locality means nearby addresses are also likely to be accessed. Cache memory keeps likely-to-be-reused items close to the CPU, reducing average access time. Thus option B is correct. Cache is neither permanent storage nor a printer-only store, and accesses are not equally likely.

Related tags

Cache-MemoryData-LocalityPerformanceBasic Components Of A Computer SystemIct (Information & Communication Technology) Skills IIct Information Communication Technology Skills IArtificial IntelligenceClass 9 Mcq

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