Top 550+ Solved Operating System Architecture MCQ Questions Answer
Q. the command echo welcome >/dev/tty
a. echoes welcome in all the gtermonals that are switched on
b. echoes welcome in all the terminals which are logged on
c. echoes welcomes only in terminal in which it is run
d. a&c
Q. The advantage of binary files over text file is
a. it is compact
b. it can be accessed faster.
c. they are more reliable
d. all of these
Q. UNIX uses ls to list files in a directory. The corresponding command in MS environment is
a. lf
b. listdir
c. dir
d. none of these
Q. For some file the access permissions are modified to 764. Which of the following interpretation is valid:
a. every one can read, group can execute only and the owner can read and write.
b. every one can read and write, but owner alone can execute.
c. every one can read, group including owner can write, owner alone can execute
d. none of these
Q. Which directory under the root contains the information on devices
a. /usr/bin
b. /dev
c. /usr/peripherals/de v
d. /etc/dev
Q. Which option makes the command to ask the user for confirmation before removing each file
a. rm-i
b. rm-r
c. rm-f
d. rm-rf
Q. which opttion deletes all files in the current directory and all its subdirectories
a. rm-i
b. rm-r
c. rm-f
d. rm-rf
Q. which option in used for deleting everything in current directory and below.
a. rm-i
b. rm-r
c. rm-f
d. rm-rf