Question: when the line in the cache is the same as that in main memory and may be present in another cache, the state is: modified

when the line in the cache is the same as that in main memory and may be present in another cache, the state is:
modified
exclusive
shared
invalid
which are correct regarding the hardwired control unit? *
easy to design and test
Inflexible design
easy to add new instructions
it provides simple sequencing & micro-operation logic.
it provides the highest speed of execution.
when the line in the cache is the same as that

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