Free Software Development Lifecycle MCQs with Answers

• 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.

• A. ls
• B. ls -1
• C. ls -x
• D. lc

Explanation: `ls -x` lists directory entries across the screen in multiple columns. `ls -1` deliberately places one filename on each line, so it does…

• A. Execute permission for the owner
• B. Write permission for others
• C. Read and write permission of groups
• D. All of the above

Explanation: The digits `6`, `5`, and `2` mean owner `rw-`, group `r-x`, and others `-w-`, respectively.

• A. C shell
• B. Korn shell
• C. Bourne shell
• D. Smith shell

Explanation: The Bourne shell, `sh`, was the original widely used Unix shell and became the foundation for many later shells.

• A. chmod u-x, go+r note
• B. chmod go+r, u+x note
• C. chmod g-x, uo+r note
• D. chmod go+x, u-x note

Explanation: `u-x` removes execute permission from the user, and `go+r` adds read permission for the group and others.

• A. lk
• B. ln
• C. cp
• D. tar

Explanation: The `ln` command creates hard or symbolic links between filenames. `cp` makes a separate copy, while `tar` packages files into an archive…

• A. find -mtime +365 | rm
• B. grep (/usr/*) - mtime + 365 | -ok rm
• C. find -name - mtime + 365 / - ok rm
• D. find /user/* \(-mtime + 365 - a - atime +365 \) - OK rm {} \;

Explanation: The find expression combines -mtime +365 and -atime +365, so both modification and access must be older than one year; -ok rm asks for…

• A. count p
• B. wc
• C. wcount
• D. countw

Explanation: wc, or word count, reports a file's number of lines, words, and characters, and commonly also its bytes.

• A. to move cursor left by one position
• B. to move cursor right by one position
• C. to move cursor down by one line
• D. to move cursor to the beginning of the line specified by the number

Explanation: In vi, placing a line number before G moves the cursor to that numbered line, so 24G moves to line 24.