Paper 1 · ICT
UGC NET December 2021 June 2022 (11.07.2022) Shift-II
With respect to information technology, which statement best describes 'cache memory'?
AUSB memory connected to a computer to increase its storage space
BAn area of memory that contains settings for operating the computer
CAn area of the hard disk that is used when there is insufficient RAM
DHigh-speed memory included in devices to improve response time ✓ Correct
Correct answer: (D) High-speed memory included in devices to improve response time — Cache memory is high-speed memory that improves response time, so option D is correct.
Explanation
★Cache memory is high-speed memory that improves response time, so option D is correct.
★Cache sits between the CPU and main memory to speed up access.
★It temporarily stores frequently used instructions and data for quick retrieval.
★This reduces the time the processor spends waiting for slower main memory.
★A USB drive adds storage but is far slower and unrelated to caching.
★An area of the hard disk used when RAM is short describes virtual memory, not cache.
★Settings for operating the computer describe configuration memory, again not cache.
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