Which option is used with the chmod command recursively to all files and sub-directories in a directory ?

A. -1
B. -i
C. -x
D. -R

Which of the following subdirectory(ies) contains the device files ?

A. /dev
B. /bin
C. /etc
D. /home

Which of the following command is used to mount NFS filesystems ?

A. nfsmount
B. knfsd
C. mount
D. All of the above

What command is used to assign executable permission to all of the files named “report” ?

A. chmod ugo + x report
B. chmod u + x report
C. chmod ugo + rw report
D. chmod ugo + r report

Which of are following internal commands is used in mail to forward mail to user in user-list ?

A. r user-list
B. m user-list
C. d user-list
D. e user-list

Which command is used to delete all files in the current directory as well as all files and sub-directories in its subdirectories ?

A. rm *
B. rm -r *
C. rm all
D. rm *.*

The seventh field of /etc/password is________________?

A. password
B. login
C. shell
D. home

Which of the following commands is used to summarize the disk usage ?

A. chkdsk
B. fdisk
C. du
D. disk

Which symbol will be used with grep command to match the pattern pat at the beginning of a line ?

A. ^pat
B. $pat
C. pat$
D. pat^

Which of the following commands is used to absolutely assign all permissions to the owner, read and write permissions to the group and only executable permission to the others of the file note ?

A. chmod 761 note
B. chmod 671 note
C. chmod 167 note
D. chmod 4=rwx, g=rw note