Selected MCQ

Current Question
In a compact disc, which technology is used to store data?
  • A. Magnetic strip
  • B. Laser
  • C. Microchip
  • D. Photocell
Correct Answer: B
Explanation:
Compact discs use laser technology to read and write data.
Related Question 1
Which technology is used in compact discs?
  • A. Mechanical
  • B. Electrical
  • C. Electro Magnetic
  • D. Laser
Correct Answer: D
Explanation:
Laser technology is used to read and write data on compact discs.
Related Question 2
A wireless technology built into electronic gadgets used for exchanging data over short distances is ____.
  • A. Bluetooth
  • B. Wi-Fi
  • C. Modem
  • D. USB
Correct Answer: A
Explanation:
Bluetooth is designed for short-range wireless communication.
Related Question 3
Which of the following devices is used to store data permanently?
  • A. Hard Disk
  • B. Printer
  • C. Cache
  • D. RAM
Correct Answer: A
Explanation:
A hard disk is non-volatile and stores data permanently even without power.
Related Question 4
Computers that are used in large organizations such as insurance companies and banks, where many people frequently need to use same data, are ____.
  • A. Mainframe computers
  • B. Supercomputers
  • C. Hybrid computers
  • D. Desktop computers
Correct Answer: A
Explanation:
Mainframe computers are designed for high-volume data processing in large organizations.
Related Question 5
A normal CD-ROM usually can store up to what data?
  • A. 680 KB
  • B. 680 Bytes
  • C. 680 MB
  • D. 60 GB
Correct Answer: C
Explanation:
A standard CD-ROM holds approximately 650–700 MB.