The bit used to indicate whether the block was recently used or not is _______(a) Idol bit(b) Control bit(c) Reference bit(d) Dirty bitThis question was posed to me at a job interview.I'd like to ask this question from Mapping Functions topic in chapter Memory System of Computer Architecture

The bit used to indicate whether the block was recently used or not is

1.	The bit used to indicate whether the block was recently used or not is _______(a) Idol bit(b) Control bit(c) Reference bit(d) Dirty bitThis question was posed to me at a job interview.I'd like to ask this question from Mapping Functions topic in chapter Memory System of Computer Architecture
Answer» RIGHT answer is (d) Dirty bit The explanation: The dirty bit is used to SHOW that the block was RECENTLY modified and for a REPLACEMENT ALGORITHM.

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The bit used to indicate whether the block was recently used or not is _______(a) Idol bit(b) Control bit(c) Reference bit(d) Dirty bitThis question was posed to me at a job interview.I'd like to ask this question from Mapping Functions topic in chapter Memory System of Computer Architecture

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