CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which command shows the beginning lines of a text file by default?
A. tail
B. grep
C. pwd
D. head
Correct Answer: D
head displays the first part of a file.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which command displays the contents of a text file directly in the terminal?
A. cat
B. chmod
C. ps
D. mkdir
Correct Answer: A
cat concatenates files and commonly displays text content.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
A Linux file whose name begins with a dot is usually treated as:
A. A device file
B. Hidden
C. Executable by default
D. Read-only by default
Correct Answer: B
Dot-prefixed files are conventionally hidden from normal directory listings.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
What does the tilde (~) commonly represent in a Unix/Linux shell?
A. The current process ID
B. A hidden file
C. The current user's home directory
D. The filesystem root
Correct Answer: C
The shell expands ~ to the user's home directory.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which directory is the top of the Unix/Linux filesystem hierarchy?
A. C:\
B. ~ only
C. /home/user only
D. /
Correct Answer: D
The single forward slash represents the filesystem root on Unix-like systems.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which key combination opens the Windows security screen containing options such as Lock, Sign out, and Task Manager?
A. Ctrl + Alt + Delete
B. Ctrl + C
C. Alt + Tab
D. Win + E
Correct Answer: A
Ctrl+Alt+Delete invokes the secure attention screen in Windows.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which folder commonly contains core 64-bit Windows system binaries on a 64-bit Windows installation?
A. C:\Recycle
B. C:\Windows\System32
C. C:\Temp
D. C:\Users\Public\Documents only
Correct Answer: B
System32 contains many core Windows system files and executables; its name is historical.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
What does the environment variable %USERPROFILE% normally refer to in Windows?
A. The boot partition table
B. The CPU cache
C. The current user's profile folder
D. The Windows kernel file
Correct Answer: C
%USERPROFILE% expands to the current user's profile directory.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which Windows command can terminate a process by name or process ID?
A. tasklist
B. whoami
C. ver
D. taskkill
Correct Answer: D
taskkill ends selected processes using image names or PIDs.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which command lists running processes in Windows Command Prompt?
A. tasklist
B. taskkill
C. tree
D. type
Correct Answer: A
tasklist displays currently running processes and related information.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which Windows command-line utility is used for advanced disk and partition management?
A. echo
B. diskpart
C. calc
D. hostname
Correct Answer: B
DiskPart manages disks, partitions, and volumes from the command line.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which Windows utility checks a disk/file system for logical errors?
A. tasklist
B. notepad
C. chkdsk
D. regedit
Correct Answer: C
chkdsk examines filesystem and disk structures and can repair selected errors.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which Windows command checks protected system files and can repair corrupted copies?
A. dir /w
B. copy con
C. tree /f
D. sfc /scannow
Correct Answer: D
System File Checker verifies protected Windows system files and can repair them.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which Windows command is commonly used to test basic network reachability to another host?
A. ping
B. mkdir
C. format
D. attrib
Correct Answer: A
ping sends ICMP echo requests to test reachability and measure response time.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which Windows command displays IP configuration information?
A. chmod
B. ipconfig
C. grep
D. ls
Correct Answer: B
ipconfig displays network adapter configuration such as IP addresses and gateways.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which command opens the System Configuration utility in Windows?
A. chkdsk
B. format
C. msconfig
D. ipconfig
Correct Answer: C
msconfig launches System Configuration for boot and service troubleshooting options.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which command opens the Windows Registry Editor from Run?
A. notepad
B. calc
C. paint
D. regedit
Correct Answer: D
The regedit command starts Registry Editor.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which Windows keyboard shortcut opens the Run dialog box?
A. Windows key + R
B. Windows key + E
C. Ctrl + R
D. Alt + R
Correct Answer: A
Win+R opens the Run dialog used to launch commands and programs.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which Windows keyboard shortcut opens File Explorer?
A. Ctrl + E
B. Windows key + E
C. Windows key + R
D. Windows key + D only
Correct Answer: B
Win+E opens File Explorer.
CSS - PMS - CCE - PCS - Basic Computing
Operating Systems
Which keyboard shortcut opens Task Manager directly in modern Windows?
A. Alt + F4
B. Win + L only
C. Ctrl + Shift + Esc
D. Ctrl + P
Correct Answer: C
Ctrl + Shift + Esc opens Windows Task Manager directly.