question What is the purpose of the CTRL Z keyboard shortcut

Computer Fundamentals

What is the purpose of the CTRL + Z keyboard shortcut?

A. Cut the selected text
B. Paste the copied text
C. Undo the last action
D. Redo the last action

CTRL + Z is commonly used to undo the last action in many applications.

What is the role of a virtual machine in computing?

A. Simulate a physical computer within a computer
B. Increase internet speed
C. Manage network connections
D. Display virtual reality environments

Which programming language is commonly used for developing mobile applications?

A. Java
B. Python
C. Swift
D. C#

What is the function of an assembler in programming?

A. Convert high-level code to machine code
B. Execute programs
C. Debug code
D. Manage memory

Which of the following is an example of a high-level programming language?

A. Assembly
B. C
C. Machine code
D. Java

Which protocol is used for sending emails over the internet?

A. HTTP
B. FTP
C. SMTP
D. DNS

What is the purpose of a modem?

A. Connect to a local network
B. Connect to the internet
C. Manage system resources
D. Store data securely

What is the purpose of the CTRL + C keyboard shortcut?

A. Copy selected text or item
B. Cut selected text or item
C. Paste copied text or item
D. Undo the last action

In web development, what does API stand for?

A. Application Programming Interface
B. Advanced Programming Interface
C. Automated Program Integration
D. Application Program Interface

What is the significance of the BIOS in a computer system?

A. Run applications
B. Manage system resources
C. Boot the operating system
D. Connect to the internet

What is the purpose of the CTRL + O keyboard shortcut?

A. Save the document
B. Open a new document
C. Open an existing document
D. Copy the selected text