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15 July, 23:10

g Define a write through cache design. A. A block of main memory may be loaded into any cache line. B. Each block of main memory is mapped to exactly one cache line. C. A block of main memory is mapped to a group cache lines. D. When the CPU writes a word, the data is immediately written both to cache and to main memory. E. When the CPU reads a word, the cache writes part of a block to memory.

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  1. 15 July, 23:16
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    Option D is the correct answer.

    Explanation:

    "Write through cache" is a writing technique in which any data is written in memory and the cache at the same time to overcome the problem of loss of data. This is a concept of "Write through cache". It means that, if the data is written at the two positions at the same time then the loss of data problem is not occurring and the users can save the data.

    Here in the question, option D states the same concept which is defined above. That's why Option D is correct. while the other option is not correct because-

    Option "a" states about the block of memory which can load on the cache which is not states about the above concept. Option "b" states about the mapping concepts. Option "C" also states about the mapping concepts. Option "E" states to write that data on cache, which is read from the memory.
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