Top 550+ Solved Operating System Architecture MCQ Questions Answer
Q. Suppose that a process is in BLOCKED state waiting for some i/o service. When a service is completed, it goes to the
a. running state
b. ready state
c. suspended state
d. terminated state
Q. Buffering mechanisms regulated the data between
a. secondary storage device and memory
b. system call interface and device driver
c. kernel and secondary storage device
d. buffer cache and file system
Q. A RAID system is useful because --
a. it increases interface performance
b. it increases speed of the processor
c. increases disk storage capacity
d. increase processor speed
Q. NFS stands for
a. normal file system
b. network file system
c. network format system
d. normal format system
Q. Thomson and Ritchie published a paper describing unix system in
a. ieee xsactions on computers
b. international jouranal ofcomputer
c. communicatio-ns of the acm
d. internal " "os
Q. Command to reboot the system
a. shutdown -k now
b. shutdown -l now
c. shutdown -r now
d. shutdown -s now
Q. grep means
a. global regular expression print
b. global revearse expression print
c. global random expression print
d. global relative expression rpint
Q. A history file
a. contains list of files used during a session
b. contains list of directories used during a session
c. contains list of directories and sub directories used during a session
d. contains list of commands used during a session
Q. The default permission bits of a file when it is created for the first time, is controlled by
a. chmod value
b. fmask value
c. umask value
d. none of the above
Q. Let x.c be a C source code. The command cc x.c > y
a. is equivalent to the command cc x.c;mv out y
b. is equivalent to the command cc -o y x.c
c. serves no purpose
d. none of the above
Q. A file x is created with the following contentsecho today is: dateIf you type x.then
a. it echoes the message. followed by date.
b. it gives the desired output only if the execute permission of file x is set.
c. the desired output can be got by the command sh x. which works even if x has its execute permission not set.
d. both (b) and ©
Q. Shell script is preferable to other forms of programming because it
a. makes programming task easier
b. enhances portability
c. occupies less space
d. all of these
Q. Choose the incorrect statements.
a. shell scripts can accept arguments
b. shell scripts are interpreted
c. shell is a programming language
d. shell scripts are compiled