operating system set 1 Detailed Explanation And More Example

Question : 1

The intensive jobs

a) use less processor time than most jobs

b) you are constrained by their I/O requirements

c) run more quickly than processor intensive jobs

d) should all be executed at the same time

Question : 2

Main memory is referred as

a) Virtual memory

b) Real memory

c) A and B both

d) None of these.

Question : 3

Following is not true for disk cache

a) It is a buffer in main memory for disk sector

b) It contains the copy of some of the sector on the disk

c) It is bigger is size than main memory

d) It is smaller is size than main memory

Question : 4

Situations where two or more processes are reading or writing some shared data and the final result depends on who runs precisely which are called

a) race condition

b) critical sections

c) mutual exclusions

d) message passing

Question : 5

Which type of design problem in file system

a) how the file system should look to the user

b) algorithm and data structure must be created to map the logical file system onto the secondary storage device

c) Both A and B above

d) none of the above

Question : 6

Processor-bound tasks

a) use the processor more often

b) use more processor time

c) use less processor time

d) always take longer to execute