operating system set 5 Detailed Explanation And More Example

Question : 1

The volatility of a file refers to

a) The number of records added or deleted from a file composed to the original number of records in that file

b) Efficiency with which non-sequential files are processed

c) The extent where the records of the file are contiguous and in proximity to others

d) Percentage of records that has changed in a given time period

Question : 2

Dijkstra's banker's algorithm in an operating-system solves the problem of

a) deadlock avoidance

b) deadlock recovery

c) mutual exclusion

d) context switching

Question : 3

The real time task

a) The tasks that reacts to events that take place in out side world.

b) The tasks that do not reacts to the outside world events.

c) The tasks are independent of the time when it occurs.

d) None of these.

Question : 4

UNIX was developed by

a) Bell Labs for PDP-7 in 1970

b) Microsoft for IBM computers

c) Macintosh

d) None of these.

Question : 5

The process control blocks are referred for

a) Process control

b) I/O devices

c) Memory allocation

d) None of these.

Question : 6

In secondary storage management, bit table, for each block on disk a vector contains

a) One bit each block

b) Two bit each block

c) Three bit each block

d) Four bit each block.