Computer Organization and Architecture Mcqs

Page No. 51

In associative mapping during LRU, the counter of the new block is set to ‘0’ and all the others are incremented by one when _____ occurs.


aDelay


bMiss


cHit


dDelayed hit


View Answer Miss

The algorithm which replaces the block which has not been referenced for a while is called _____


a LRU


bORF


cDirect


dBoth LRU and ORF


View Answer LRU

In set associative and associative mapping there exists less flexibility.


a True


bFalse


ceither true either false


d none of the mentioned


View Answer False

The surroundings of the recently accessed block is called as ______


aNeighborhood


bNeighbour


cLocality of reference


dNone of the mentioned


View Answer Locality of reference

The directly mapped cache no replacement algorithm is required.


aTrue


bFalse


ceither true either false


d none of the mentioned


View Answer True

If the instruction Add R1, R2, R3 is executed in a system which is pipelined, then the value of S is (Where S is a term of the Basic performance equation).


a3


b ~2


c~1


d6


View Answer ~1

Two processors A and B have clock frequencies of 700 Mhz and 900 Mhz respectively. Suppose A can execute an instruction with an average of 3 steps and B can execute with an average of 5 steps. For the execution of the same instruction which processor is faster.


aA


bB


cBoth take the same time


dInsufficient information


View Answer A

The performance of the system is greatly influenced by increasing the level 1 cache.


aTrue


bFalse


ceither true either false


dnone of the mentioned


View Answer True

An effective to introduce parallelism in memory access is by _______


a Memory interleaving


bTLB


cPages


dFrames



The memory transfers between two variable speed devices are always done at the speed of the faster device.


aTrue


bFalse


ceither true either false


dnone of the mentioned


View Answer True

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