All Free Software Engineering MCQs with Answers

• A. /sbin/usrquota
• B. /sbin/edquota
• C. /sbin/quotaon
• D. /sbin/quota

Explanation: `edquota` opens the quota settings for editing and allows administrators to set soft and hard limits for users or groups.

• A. chmod ugo + x letter
• B. chmod u + x letter
• C. chmod u + w letter
• D. chmod g + x letter

Explanation: In `chmod`, `u` identifies the file owner and `+x` adds execute permission, giving `chmod u+x letter`.

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

Explanation: The `/dev` directory contains special device files that provide interfaces to hardware and virtual devices.

• A. chmod u+x emp[1-3]
• B. chmod 777 emp*
• C. chmod u+r ??? emp
• D. chmod 222 emp?

Explanation: The pattern `emp[1-3]` matches names beginning with `emp` and ending in 1, 2, or 3, while `chmod u+x` changes the owner's execute…

• A. ccp
• B. du
• C. cmp
• D. comp

Explanation: The Unix `cmp` command compares two files byte by byte and reports where their contents first differ.

• A. [Control-d]
• B. [Control - u]
• C. [Control-c]
• D. [Control -P]

Explanation: In vi, Ctrl-U scrolls backward by approximately half a screen. Ctrl-D scrolls forward by half a screen, while Ctrl-C interrupts and Ctrl-P…

• A. -t
• B. -tt
• C. -4
• D. -i

Explanation: The `-t` option is used in the command convention tested here to include the filesystem's total disk-space information.

• A. /
• B. ?
• C. //
• D. ??

Explanation: A forward slash `/` starts a forward search in vi, moving from the cursor toward the end of the file.

• A. s
• B. S
• C. a
• D. i

Explanation: The vi command `i` enters insert mode immediately before the cursor, so new text appears to its left.

• A. cat
• B. cut
• C. grep
• D. paste

Explanation: `cut` extracts selected fields or character columns from each input line, commonly using a delimiter with the `-d` and `-f` options.

• A. grep
• B. tail
• C. head
• D. cat

Explanation: `tail` displays the end of a file and shows the final 10 lines by default.

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

Explanation: In `761`, the digits represent user, group, and other permissions: 7 is `rwx`, 6 is `rw-`, and 1 is `--x`.

• A. 2GB
• B. 128MB
• C. 64MB
• D. 32MB

Explanation: Under the Linux 2.2.x limit referenced by this question, one swap partition could be at most 2 GB.

• A. vi
• B. Outlook
• C. Scheduler
• D. cron

Explanation: `cron` runs commands according to scheduled times defined in crontab entries, making it suitable for recurring jobs.

• A. Session
• B. Data-link
• C. Application
• D. Network

Explanation: The OSI Application layer provides network services closest to end-user applications and therefore forms the user-facing interface.

• A. ??
• B. //
• C. ?
• D. /

Explanation: In vi, `/pattern` searches forward from the current position, while `?pattern` searches backward.

• A. Using useradd
• B. Using adduser
• C. Using linuxconf
• D. All of the above

Explanation: `useradd` and `adduser` create users, while `linuxconf` also provided user-management functions on older Linux systems.

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

Explanation: In the Unix `mail` program, `m user-list` starts a message addressed to the specified user or list.

• A. A
• B. a
• C. i
• D. I

Explanation: Uppercase `A` moves to the end of the current line and enters insert mode, so new text is appended there.

• A. cp
• B. cpio
• C. cp - p
• D. copy

Explanation: `cpio` copies files and directory structures into and out of archive files, which is the significance of “in and out” in the question.