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Which of the following is ( are ) true? ( a ) If the write - around policy is adopted, the written data is only
Which of the following is are true?
a If the writearound policy is adopted, the written data is only updated in the
main memory when a cache write miss occurs.
b There is no cache coherency problem for the writethrough cache since the
data is only written into the next level of memory.
c When a cache write hit occurs, the written data are only updated in the
cache when using the writeback policy.
d The "NonRead Through" policy reads the missed data from the cache.
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