operating system set 5 Detailed Explanation And More Example

Question : 1

The process control blocks are referred for

a) Process control

b) I/O devices

c) Memory allocation

d) None of these.

Question : 2

UNIX was developed by

a) Bell Labs for PDP-7 in 1970

b) Microsoft for IBM computers

c) Macintosh

d) None of these.

Question : 3

Wild-card specifies

a) provide an easy way of finding groups of related files

b) are only used when printing the contents of files

c) can be used when writing a file

d) allow several files to be read simultaneously

Question : 4

If in a computer networking environment when all the processing is done on single computer can be referred as

a) Host based processing

b) Server based processing

c) Client based processing

d) None of these.

Question : 5

The direct memory access (DM(A) module

a) Controls the data exchange between main memory and I/O module.

b) The processor issues I/O command, execute subsequent instructions and interrupt I/O module.

c) The processor issues I/O commands to an I/O module.

d) None of these.

Question : 6

The number of process states recognized by UNIX

a) Two

b) Nine

c) Eight

d) Seven.