1
GATE CSE 2009
MCQ (Single Correct Answer)
+2
-0.6
Consider a disk system with $$100$$ cylinders. The requests to access the cylinders occur in following sequence:
$$4, 34, 10, 7, 19, 73, 2, 15, 6, 20$$
Assuming that the head is currently at cylinder $$50,$$ what is the time taken to satisfy all requests if it takes $$1$$ $$ms$$ to move from one cylinder to adjacent one and shortest seek time first policy is used?
A
$$95\,\,ms$$
B
$$119\,\,ms$$
C
$$233\,\,ms$$
D
$$276\,\,ms$$
2
GATE CSE 2008
MCQ (Single Correct Answer)
+2
-0.6
For a magnetic disk with concentric circular tracks, the seek latency is not linearly proportional to the seek distance due to
A
non-uniform distribution of requests
B
arm starting and stopping inertia
C
higher capacity of tracks on the periphery of the platter
D
use of unfair arm scheduling policies.
3
GATE CSE 2005
MCQ (Single Correct Answer)
+2
-0.6
Consider a 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 $$4$$ byte word is ready it it's 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
$$50$$
4
GATE CSE 2002
MCQ (Single Correct Answer)
+2
-0.6
In the index allocation scheme of blocks to a file, the maximum possible size of the file depends on
A
The size of the blocks, and the size of the address of the blocks.
B
The number of blocks used for the index, and the size of the blocks.
C
The size of the blocks, the number of blocks used for the index, and the size of the address of the blocks.
D
None of the above.
GATE CSE Subjects
Software Engineering
Web Technologies
EXAM MAP
Medical
NEET
Graduate Aptitude Test in Engineering
GATE CSEGATE ECEGATE EEGATE MEGATE CEGATE PIGATE IN
CBSE
Class 12