31. What command is used with file named ‘letter’ to remove the executable permission from the user and assign read permission to the group and others?

A. chmod go + x, u – x letter
B. chmod g – x, uo + r letter
C. chmod go + r, u + x letter
D. chmod u – x, go + r letter
E. None of the above

32. What command is used to assign executable permission to the owner of the file named “letter”?

A. chmod ugo + x letter
B. chmod u + x letter
C. chmod u + w letter
D. chmod g + x letter
E. None of the above

33. What command is used to compare the files?

A. ccp
B. du
C. cmp
D. comp
E. None of the above

34. What command is used to summarize the disk usage?

A. disk
B. du
C. fdisk
D. chkdsk
E. None of the above

35. What command is used to list the jobs currently in print queues?

A. lpq
B. lpr
C. lprm
D. lpc
E. None of the above