1
GATE CSE 2005
MCQ (Single Correct Answer)
+2
-0.6
Consider the disk drive with the following specifications $$16$$ surfaces, $$512$$ tracks/surface, $$512$$ sectors/track, $$1$$ $$KB/sector$$, rotation speed $$3000$$ $$rpm.$$ The disk is operated in cycle stealing mode whereby whenever one byte word is ready it is sent to memory; similarly, for writing, the disk interface reads a $$4$$ byte word from the memory in each $$DMA$$ cycle. Memory cycle time is $$40$$ $$nsec$$. The maximum percentage of time that the $$CPU$$ gets blocked during $$DMA$$ operation is
A
$$10$$
B
$$25$$
C
$$40$$
D
$$50$$
2
GATE CSE 2004
MCQ (Single Correct Answer)
+2
-0.6
A Hard disk with a transfer rate of $$10Mbytes/second$$ is constantly transferring data to memory using $$DMA.$$ The processor runs at $$600MHz$$ and takes $$300$$ and $$900$$ clock cycles to initiate and complete $$DMA$$ transfer respectively. The size of the data transfer is $$20$$ $$KB.$$ What is the $$\% $$ of processor time consumed for this operation ?
A
$$10\% $$
B
$$1\% $$
C
$$0.1\% $$
D
$$0.01\% $$
3
GATE CSE 2000
MCQ (Single Correct Answer)
+2
-0.6
A graphics card has on board memory of $$1$$ $$MB.$$ Which of the following modes can the card not support?
A
$$1600\,\, \times \,\,400$$ resolution with $$256$$ colours on a $$17$$ inch monitor
B
$$1600\,\, \times \,\,400$$ resolution with $$16$$ million colours on a $$14$$ inch monitor
C
$$800\,\, \times \,\,400$$ resolution with $$16$$ million colours on a $$17$$ inch monitor
D
$$800\,\, \times \,\,400$$ resolution with $$256$$ colours on a $$14$$ inch monitor
4
GATE CSE 1999
MCQ (More than One Correct Answer)
+2
-0
RAID configurations of disks are used to provide
A
Fault-tolerance
B
High speed
C
High data density
D
None of the above
GATE CSE Subjects
Software Engineering
Web Technologies
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