Computer MCQs
Computer MCQs cover operating systems, MS Office, hardware, software, networking, programming, and internet basics. Perfect for IT exams, NTS, and government tests, they boost accuracy, speed, and confidence in computer knowledge for competitive success.
Q: Firewall prevents unauthorized access to
A) Network
B) Printer
C) Monitor
D) Scanner
✅ Correct Answer: A
Explanation: A firewall controls incoming and outgoing network traffic.
Q: A bit is the smallest unit of
A) Power
B) Processing
C) Network
D) Storage
✅ Correct Answer: D
Explanation: A bit represents a binary digit in computing.
Q: Cloud computing enables access to resources via
A) Internet
B) External hard drives
C) LAN cable only
D) Local disks
✅ Correct Answer: A
Explanation: Cloud services are accessed over the internet.
Q: Hard Disk Drive is a type of
A) Volatile memory
B) Permanent storage
C) Cache memory
D) Optical drive
✅ Correct Answer: B
Explanation: HDDs are used for long-term data storage.
Q: Compiler translates high-level code into
A) Text document
B) Machine code
C) Video stream
D) Image file
✅ Correct Answer: B
Explanation: Compilers convert programming code into machine-readable instructions.