Computer & IT · Topic 2
What an operating system does and the main operating systems.
Learn first
Learn what an operating system does and who makes the main ones.
Practise
Try each question, then open the answer. MCQs 101–150 of 218.
101.Which Windows version introduced the tile-based Start screen in 2012?
Answer: D. Windows 8
Windows 8 was designed for touchscreens.
102.Windows 10 was released in which year?
Answer: C. 2015
Windows 10 was launched in July 2015.
103.Windows 11 was released in which year?
Answer: C. 2021
Windows 11 came out in October 2021.
104.Microsoft's operating system for servers is called what?
Answer: D. Windows Server
Windows Server runs networks and data centres.
105.The first version of macOS (then Mac OS X) was released in which year?
Answer: D. 2001
Mac OS X 10.0 came out in 2001, based on Unix.
106.macOS is based on which kind of operating system?
Answer: C. Unix
macOS is a certified Unix system.
107.The first iPhone, with iOS, was released in which year?
Answer: D. 2007
Steve Jobs unveiled the iPhone in January 2007.
108.The first Android phone was released in which year?
Answer: B. 2008
The HTC Dream (T-Mobile G1) came out in 2008.
109.Android versions used to be named after what?
Answer: B. Desserts and sweets
Names like Cupcake, KitKat and Oreo were used until Android 10.
110.Which company developed the Symbian operating system used by Nokia phones?
Answer: C. Symbian Ltd (owned by Nokia)
Symbian was the leading phone OS before smartphones took off.
111.BlackBerry phones originally ran which operating system?
Answer: D. BlackBerry OS
BlackBerry later moved to Android.
112.Which open-source operating system was created as a free Unix-like system by students at Berkeley?
Answer: C. BSD
The Berkeley Software Distribution led to FreeBSD and others.
113.Which Linux distribution is developed by Canonical?
Answer: C. Ubuntu
Ubuntu was first released in 2004.
114.Which company develops Red Hat Enterprise Linux?
Answer: C. Red Hat (owned by IBM)
IBM bought Red Hat in 2019.
115.Which Linux distribution is popular for cyber-security testing?
Answer: C. Kali Linux
Kali comes with many security tools.
116.What licence does the Linux kernel use?
Answer: A. GNU General Public License (GPL)
The GPL keeps Linux free and open.
117.Most of the world's supercomputers run which operating system?
Answer: D. Linux
Every one of the top 500 supercomputers runs Linux.
118.Most web servers on the internet run which operating system?
Answer: B. Linux
Linux dominates web servers and cloud computing.
119.The Linux command to change directory is what?
Answer: D. cd
cd changes the current directory.
120.The Linux command that shows the current directory is what?
Answer: D. pwd
pwd means "print working directory".
121.The Linux command to copy a file is what?
Answer: C. cp
cp copies files.
122.The Linux command to move or rename a file is what?
Answer: A. mv
mv moves or renames files.
123.The Linux command to delete a file is what?
Answer: A. rm
rm removes files.
124.The Linux command to make a new directory is what?
Answer: C. mkdir
mkdir creates a directory.
125.The Linux command that runs a command with administrator rights is what?
Answer: A. sudo
sudo means "superuser do".
126.The Linux command to show the contents of a text file is what?
Answer: D. cat
cat prints a file's contents.
127.The Linux command to search for text inside files is what?
Answer: A. grep
grep searches for patterns in text.
128.The Linux command to change file permissions is what?
Answer: C. chmod
chmod changes read, write and execute permissions.
129.The Windows command to clear the screen in Command Prompt is what?
Answer: A. cls
cls clears the Command Prompt; Linux uses clear.
130.The Windows command to copy files is what?
Answer: A. copy
copy duplicates files in Command Prompt.
131.The Windows command to delete a file is what?
Answer: D. del
del (or erase) deletes files.
132.The Windows command to make a new folder is what?
Answer: A. md (mkdir)
md and mkdir both create folders.
133.The Windows command to trace the route to another computer is what?
Answer: B. tracert
Linux uses traceroute.
134.Which Windows tool lets you schedule programs to run at set times?
Answer: A. Task Scheduler
Task Scheduler runs tasks automatically.
135.Which Windows tool shows logs of system errors and events?
Answer: A. Event Viewer
Event Viewer records system events.
136.Which Windows tool is used to create and format partitions?
Answer: B. Disk Management
Disk Management handles drives and partitions.
137.Which Windows tool removes temporary files to free up space?
Answer: D. Disk Cleanup
Disk Cleanup deletes temporary and unneeded files.
138.Which Windows file stores system settings in a central database?
Answer: B. The Registry
The Registry holds settings for Windows and programs.
139.Which command opens the Windows Registry Editor?
Answer: A. regedit
regedit opens the Registry Editor.
140.Which command opens the System Configuration tool in Windows?
Answer: C. msconfig
msconfig controls start-up options.
141.Temporary storage of copied or cut data is called what?
Answer: B. Clipboard
The clipboard holds the last copied item.
142.Which shortcut opens the clipboard history in Windows 10 and 11?
Answer: A. Windows+V
Windows+V shows recently copied items.
143.Which shortcut opens the Windows Settings app?
Answer: A. Windows+I
Windows+I opens Settings.
144.Which shortcut takes a screenshot of part of the screen in Windows 10 and 11?
Answer: B. Windows+Shift+S
It opens the Snipping Tool overlay.
145.Which shortcut snaps a window to the left half of the screen?
Answer: D. Windows+Left Arrow
Windows+Arrow keys snap windows.
146.Which shortcut renames a selected file in Windows?
Answer: C. F2
F2 lets you rename a file or folder.
147.Which key refreshes a window or web page?
Answer: A. F5
F5 refreshes; Ctrl+F5 does a full reload in browsers.
148.Which key toggles full-screen mode in most browsers?
Answer: C. F11
F11 enters and exits full screen.
149.Which shortcut opens a new tab in a web browser?
Answer: B. Ctrl+T
Ctrl+T opens a new tab.
150.Which shortcut reopens the last closed tab in a browser?
Answer: D. Ctrl+Shift+T
Ctrl+Shift+T restores the last closed tab.
Test yourself
Each quiz has 50 MCQs from this topic and 50 minutes. A correct answer earns 1 mark and each wrong answer takes off 0.25; skipped questions score nothing. No password needed.
