1
GATE CSE 2012
+2
-0.6
A file system with 300 G Byte disk uses a file descriptor with 8 direct block addresses, 1 indirect block address and 1 doubly indirect block address. The size of each disk block is 128 Bytes and the size of each disk block address is 8 Bytes. The maximum possible file size in this file system is
A
3 K Bytes
B
35 K Bytes
C
280 K Bytes
D
dependent on the size of the disk
2
GATE CSE 2011
+2
-0.6
An application loads $$100$$ libraries at startup. Loading each library requires exactly one disk access. The seek time of the disk to random location is given as $$10$$ $$ms$$. Rotational speed of disk is $$6000$$ $$rpm.$$ If all $$100$$ libraries are loaded from random locations on the disk, how long does it take to load all libraries? (The time to transfer data from the disk block once the head has been positioned at the start of the block may be neglected).
A
$$0.50s$$
B
$$1.50s$$
C
$$1.25s$$
D
$$1.00s$$
3
GATE CSE 2009
+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
$$276\,\,ms$$
4
GATE CSE 2008
+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.
GATE CSE Subjects
EXAM MAP
Medical
NEET