Top 550+ Solved Operating System Architecture MCQ Questions Answer
Q. it r-- means
a. readable
b. readable and executable
c. readable and writable
d. readable, writable and executable
Q. it r-x means
a. readable
b. readable and executable
c. readable and writable
d. readable, writable and executable
Q. it rw- means
a. readable
b. readable and executable
c. readable and writable
d. readable, writable and executable
Q. It rwx means
a. readable
b. readable and executable
c. readable and writable
d. readable, writable and executable
Q. The command that can be used to restrict incoming messages to a user is
a. halt
b. mesg
c. grep
d. sleep
Q. The sort command in UNIX
a. used to sort a file
b. used to sort the list of files in a directory
c. both a and b
d. none of the abov
Q. The tail command in UNIX
a. can be used to look at the tail or bottom of the file
b. can be used to display the list of last 10 files in the current directory
c. can be used to display the list of last 15 in the current directory
d. none of the above
Q. Which command is used to change protection mode of files starting with the string emp and ending with 1,2, or 3?
a. can be used to look at the tail or bottom of the file
b. chmod u x emp[l-3]
c. chmod u r ??? emp
d. chmod 222 emp?
Q. Which command will be used with vi editor to append text at end of line?
a. is–x
b. is
c. is–1
d. is–f–x