question What is the purpose of a firewall in a computer network

Computer Fundamentals

What is the purpose of a firewall in a computer network?

A. Manage file storage
B. Enhance system performance
C. Block unauthorized access
D. Encrypt data

Firewalls prevent unauthorized access to a network by monitoring and controlling incoming and outgoing traffic.

Which programming language is commonly used for game development?

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

Which programming language is commonly used for scientific and mathematical applications?

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

What is the purpose of a compiler in the context of programming languages?

A. Convert high-level code to machine code
B. Debug code
C. Run applications
D. Connect to the internet

What is the role of an optical mouse in computing?

A. Record audio
B. Capture images
C. Track movement using light
D. Generate 3D graphics

Which file format is commonly used for images with a transparent background?

A. .jpg
B. .png
C. .gif
D. .bmp

What is the purpose of a network router?

A. Display web pages
B. Connect devices within a LAN
C. Block unauthorized access
D. Manage file storage

What is the primary function of a cache memory in a computer system?

A. Store data permanently
B. Provide additional storage space
C. Speed up data access by storing frequently used data
D. Manage network connections

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

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

What is the purpose of a graphics card in a computer?

A. Store files and documents
B. Display images and videos
C. Connect to the internet
D. Process user input

In computer storage, what does RAID 5 provide?

A. Data striping with parity
B. Mirrored copies of data
C. Sequential data storage
D. Random access to data