Free Software Development Lifecycle MCQs with Answers

• A. rd
• B. rmdir
• C. dldir
• D. rdir

Explanation: `rmdir` removes an empty directory, which is the standard command specifically intended for directory removal.

• A. ls -l *.lst
• B. ls lst*
• C. ls *.*
• D. ls *[lst]

Explanation: The wildcard `*.lst` matches names ending in `.lst`, and `ls -l` lists those matches in detailed form.

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

Explanation: `du` means disk usage and reports the space used by files and directories.

• A. 82 and 83
• B. 92 and 93
• C. 63 and 64
• D. 82 and 85

Explanation: In the traditional Linux fdisk partition-type codes, 82 denotes Linux swap and 83 denotes a Linux native file-system partition.

• A. ls
• B. cat
• C. file
• D. more

Explanation: The `file` command examines a file's contents and identifies its type, such as text, executable, or image.

• A. addroute
• B. route
• C. netstat
• D. net

Explanation: The traditional Linux `route` command displays and modifies the kernel's IP routing table, so it can add routes to a router.

• A. -r
• B. -x
• C. -i
• D. -1

Explanation: The `-i` option enables interactive confirmation, causing `rm` to ask before removing each file.

• A. -a option
• B. -d option
• C. -r option
• D. -x option

Explanation: In `cut`, the `-d` option defines the delimiter or field separator, such as `-d,` for comma-separated data.

• A. tar
• B. cpio
• C. cp
• D. copy

Explanation: `cp` is the standard Unix/Linux command for copying files and directories.

• A. FTP
• B. SNMP
• C. SMTP
• D. RPC

Explanation: SMTP, the Simple Mail Transfer Protocol, transfers outgoing electronic mail between mail servers.

• A. wc - 1
• B. wc -c
• C. wc -w
• D. wc -r

Explanation: The `-c` option makes `wc` count bytes, which normally corresponds to the number of characters in a text file.

• A. cp chap?? progs
• B. cp chap* progs
• C. cp chap[12] /progs/*.*
• D. cp chap?? /progs/*

Explanation: The `?` wildcard matches exactly one character, so `chap??` selects filenames beginning with `chap` followed by exactly two characters.

• 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.