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Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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The access time of a cache memory is 50 ns
and that of main memory is 500 ns. It is estimated
that 80 percent of memory requests are for read
and remaining for write. The hit ratio for read
access only is 0.9, and for write is 0.8. What is
the average access time if write through policy
is used?
Transcribed Image Text:The access time of a cache memory is 50 ns and that of main memory is 500 ns. It is estimated that 80 percent of memory requests are for read and remaining for write. The hit ratio for read access only is 0.9, and for write is 0.8. What is the average access time if write through policy is used?
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