operating system Practice Questions Answers Test with Solutions & More Shortcuts

Question : 11

Allocate the first hole that is big enough is called

a) first fit

b) best fit

c) worst fit

d) all of the above

Question : 12

• A-Fixed-Head disk,
• B-Movable-Head disk,
• 1- One head per track and al head are mounted on a rigid arm that extends across all tracks.
• 2- Only one head and the head is mounted on the arm, such that it can position the track.

a) A - 1, B - 2

b) A - 2, B - 1

c) A - 1, B - 1

d) A - 2, B - 2

Question : 13

 In three-tier client/server architecture application software match the following:

• A-User machine, 1-Client,
• B- Middle-tier, 2- Application server,
• C- Backend server, 3 Data servers.

a) A - 1, B - 2, C - 3

b) A - 1, B - 3, C - 2

c) A - 2, B - 1, C - 3

d) A - 3, B - 2, C - 1

Question : 14

Match the following for file system architecture: 

• A-Basic file system,
• B-Logical I/O module,
• 1- Deals with blocks of data,
• 2- Deals with file records,
• 3- Provides general purpose record I/O capacity.

a) A - 1, B - 2, 3

b) A - 1, 2, B - 3

c) A - 2, 3, B - 1

d) A - 1, 3, B - 2

Question : 15

Physical address (absolute address) in memory partitioning is

a) Actual location in main memory

b) A reference to memory location independent of current assignment

c) A logical address

d) None of these.