Computer Organization and Architecture Mcqs

Page No. 14

The reserved memory or private space of the subroutine gets deallocated when _______


aThe stop instruction is executed by the routine

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bThe pointer reaches the end of the space

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cWhen the routine’s return statement is executed

✓


dNone of the mentioned

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______ pointer is used to point to parameters passed or local parameters of the subroutine.


aStack pointer

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bFrame pointer

✓


cParameter register

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dLog register

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View Answer Frame pointer

If the subroutine exceeds the private space allocated to it then the values are pushed onto _________


aStack

✓


bSystem heap

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cReserve Space

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dStack frame

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View Answer Stack

The private work space dedicated to a subroutine is called as ________


aSystem heap

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bReserve

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cStack frame

✓


dAllocation

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View Answer Stack frame

The process wherein the processor constantly checks the status flags is called as ___________


aPolling

✓


b Inspection

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cReviewing

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dEchoing

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View Answer Polling

The method which offers higher speeds of I/O transfers is ___________


anterrupts

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bMemory mapping

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cProgram-controlled I/O

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dDMA

✓


View Answer DMA

The method of synchronising the processor with the I/O device in which the device sends a signal when it is ready is?


aExceptions

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bSignal handling

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cnterrupts

✓


dDMA

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View Answer nterrupts

The method of accessing the I/O devices by repeatedly checking the status flags is ___________


aProgram-controlled I/O

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bMemory-mapped I/O

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cI/O mapped

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dNone of the mentioned

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To overcome the lag in the operating speeds of the I/O device and the processor we use ___________


aBUffer spaces

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bStatus flags

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cInterrupt signals

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dExceptions

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View Answer Status flags

The system is notified of a read or write operation by ___________


appending an extra bit of the address

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bEnabling the read or write bits of the devices

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cRaising an appropriate interrupt signal

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dSending a special signal along the BUS

✓



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