Top 550+ Solved Operating System Architecture MCQ Questions Answer
Q. Services provided by kernel are………
a. controlling execution of process
b. scheduling processes
c. allocating main memory for an executing process
d. all of these
Q. The shell acts as an interface between the………..
a. user and kernel
b. user and operating system
c. kernel and operating system
d. none of these
Q. When a process executes a system call, the execution mode of the process changes from ………..
a. kernel mode to user mode
b. user mode to kernel mode
c. user mode to operating system mode
d. none of these
Q. when the kernel services an intrrupt, it blocks out low priority interrupts but………..
a. services middle priority interrupt
b. services higher priority interrupts
c. both a and b
d. none of these
Q. The commonly used UNIX commands like date, ls, cat, etc. are stored in………..
a. /dev directory
b. /bin and /usr/bin directories
c. /tmp directory
d. /unix directory
Q. Which of the following commands is used to summarize the disk usage?
a. chkdsk
b. fdisk
c. du
d. disk
Q. Which command is used to sort the lines of data in a file in alphabetical order?
a. sort
b. sh
c. st
d. sort -r
Q. Which command is used to copy a file wb with the same name from the programs directory to the misc directory?
a. copy programs/wb misc/wb
b. cp programs/wb misc
c. tar programs/wb misc/wb
d. copy a:programs/wb b:misc/wb
Q. The ls -l command tells
a. who the owner of the file is
b. the name of the group owner of the file
c. how large the file is and when the file was last modified.
d. all of the above
Q. Which command is used to set the three permissions for all the three categories of users of a file?
a. chgrp
b. chown
c. chmod
d. chusr
Q. Which of the following commands can be used to get information about yourself?
a. who am i
b. i /4
c. pwd
d. which