All Free Software Engineering MCQs with Answers

• A. shutry
• B. TRY
• C. trial
• D. None of the above

Explanation: In Unix-like systems, shutry, TRY, and trial are all valid filenames because ordinary letters may be used and case is significant.

• A. lpq
• B. lpr
• C. lprm
• D. lpc

Explanation: lpq displays the print jobs currently waiting in printer queues. lpr submits a print job, while lprm removes one.

• A. netstat
• B. route
• C. trace
• D. ipchains

Explanation: ipchains was a Linux firewall administration tool used before iptables became standard.

• A. /var/log
• B. /etc/log
• C. /mail
• D. All of the above

Explanation: Red Hat Linux stores system and mail-related log files under /var/log. The other paths are not the standard central log directory.

• A. oct
• B. of
• C. od
• D. cd

Explanation: The `od` command, meaning octal dump, displays file data in octal and other representations.

• A. NFS
• B. SMD
• C. smbclient
• D. smbserver

Explanation: `smbclient` is the Linux command-line client for connecting to and working with SMB or Windows file shares.

• A. mkboot disk
• B. bootfp disk
• C. ww and rawwrite
• D. dd and rawrite

Explanation: `dd` copies a disk image at the block level, and `rawrite` writes an image to a floppy, so these tools were used to create bootable Linux…

• A. @
• B. #
• C. $
• D. !

Explanation: In traditional vi input mode, `#` backs up over the character immediately before the cursor, making it useful for correcting typing…

• A. rch
• B. R
• C. S
• D. j

Explanation: `j` is a vi movement command that moves the cursor down, not an input-mode command.

• A. more
• B. cat
• C. grep
• D. tee

Explanation: `tee` copies standard input to a file while also sending the same data to standard output, so it remains visible on the terminal.

• A. who am i
• B. i /4
• C. pwd
• D. which

Explanation: `who am i` displays the current user's login identity and related session information.

• A. 1
• B. 6
• C. 5
• D. 3

Explanation: Read permission is 4 and write permission is 2, so the owner's combined permission value is 4 + 2 = 6 in octal.

• A. chmod 167 note
• B. chmod u=rwx, g=rw, o=x note
• C. chmo a =761 note
• D. chmod 4=7, g=6,0 =1 note

Explanation: In `761`, the digits assign owner `7` as `rwx`, group `6` as `rw-`, and others `1` as `--x`.

• A. ls | wc
• B. ls -l | wc -l
• C. ls | wc -w
• D. ls | ws -c

Explanation: `ls` sends the directory entries to `wc`, and `wc -w` counts them as words.

• A. print
• B. prn
• C. pg
• D. lp

Explanation: `lp` sends a file to the system printer, whereas `print`, `prn`, and `pg` are not the standard Unix command for printing a file.

• A. which
• B. who
• C. who am i
• D. 1 /u

Explanation: `who` lists all users currently logged in, usually showing their terminals and login times.

• 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

Explanation: `cp programs/wb misc` copies `wb` into the `misc` directory while preserving its filename.

• A. cd
• B. cd ..
• C. cd/
• D. chdir

Explanation: In Unix, `..` denotes the parent directory, so `cd ..` moves one level upward. A bare `cd` normally takes the user to the home directory.

• A. s
• B. S
• C. a
• D. i

Explanation: In vi, `s` deletes the character under the cursor and enters insert mode, allowing any number of replacement characters.

• A. cat
• B. grep
• C. wc
• D. None of the above

Explanation: `cat`, `grep`, and `wc` can all act as Unix filters because they can read standard input and write standard output.