December 2014 - Paper 3

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3. December 2014
4. Paper 3

46:  

Temporal cohesion means

A.	Coincidental cohesion
B.	Cohesion between temporary variables
C.	Cohesion between local variables
D.	Cohesion with respect to time
	Answer Report Discuss
	Option: A Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

47:  

Various storage devices used by an operating system can be arranged as follows in increasing order of accessing speed:

A.	Magnetic tapes → magnetic disks → optical disks →  electronic disks →  main memory →  cache →  registers
B.	Magnetic tapes → magnetic disks → electronic disks → optical disks → main memory → cache → registers
C.	Magnetic tapes → electronic disks → magnetic disks → optical disks → main memory → cache → registers
D.	Magnetic tapes → optical disks → magnetic disks →electronic disks →  main memory → cache → registers
	Answer Report Discuss
	Option: C Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

48:  

How many disk blocks are required to keep list of free disk blocks in a 16 GB hard disk with 1 kB block size using linked list of free disk blocks? Assume that the disk block number is stored in 32 bits.

A.	1024 blocks
B.	16794 blocks
C.	20000 blocks
D.	1048576 blocks
	Answer Report Discuss
	Option: D Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

49:  

Consider an imaginary disk with 40 cylinders. A request come to read a block on cylinder 11. While the seek to cylinder 11 is in progress, new requests come in for cylinders 1, 36, 16, 34, 9 and 12 in that order. The number of arm motions using shortest seek first algorithm is

A.	111
B.	112
C.	60
D.	61
	Answer Report Discuss
	Option: D Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

50:  

An operating system has 13 tape drives. There are three processes PI, P2 & P3.1 Maximum requirement of PI is 11 tape drives, P2 is 5 tape drives and P3 is 8 tape drives. Currently, PI is allocated 6 tape drives, P2 is allocated 3 tape drives and P3 is allocated 2 tape drives. Which of the following sequences represent a safe state?

A.	P2 P1 P3
B.	P2 P3 P1
C.	P1 P2 P3
D.	P1 P3 P2
	Answer Report Discuss
	Option: A Explanation : Click on Discuss to view users comments. Write your comments here: Updating your Comments.. Updating your Comments..

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