operating system set 2 Detailed Explanation And More Example

Question : 1

The correct matching for the following pairs is - 

a) A-2, B-4, C-1, D-3

b) A-1, B-2, C-3, D-4

c) A-2, B-1, C-4, D-3

d) None of these

Question : 2

Match the following in RAID scheme:

• A-Parallel access array,
• B-Independent access array,
• 1- All member disks participate in the execution of every I/O request.
• 2- Each member disk participates separately in the execution of every I/O request.
• 3- Here spindles of the individual drives are synchronized so that each disk head is in the same position on each disk at any given time.

a) A - 1, 3 and B - 2

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

c) A - 2 and B - 1, 3

d) A - 1, 2 and B - 3

Question : 3

In cluster

a) Computers communicate with each others via fixed paths or via some network facilities

b) Computer communicates with each others via a shared memory.

c) Both (A) and (B)

d) None of these.

Question : 4

In aperiodic (real time) tasks

a) The dead line for start is mandatory, but for finish it is not.

b) The dead line for finish is mandatory, but for start it is not.

c) The dead line for finish and start is mandatory.

d) The dead line for finish and start is not mandatory.

Question : 5

The transfer time in disk scheduling is

a) Proportional to rotation speed.

b) Inversely proportional to rotation speed.

c) Equal to rotation speed.

d) None of these.

Question : 6

Match the following pairs A. Logical address (1) An actual location in main memory B. Relative address (2) An address is expressed as a location relative to some known point. C. Physical address (3) A memory location independent of the current assignment of data to

a) A - 3, B - 2, C - 1

b) A - 2, B - 1, C - 3

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

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