Selected MCQ

Current Question
The best technology to save data on a disk is ____.
  • A. Tapes
  • B. Laser
  • C. Punch cards
  • D. None of these
Correct Answer: B
Explanation:
Laser technology (used in CDs/DVDs) provides reliable data storage.
Related Question 1
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 2
DOS cannot retrieve any data from a disk if a computer virus corrupts its ____.
  • A. Directory Area
  • B. Data Area
  • C. BAT Files
  • D. File Allocation Table (FAT)
Correct Answer: D
Explanation:
Corruption of the File Allocation Table prevents data retrieval.
Related Question 3
An optical disk is an electronic data storage medium that can be written and read from using a ____.
  • A. Low-power laser beam
  • B. High-power laser beam
  • C. Strong power laser beam
  • D. All of these
Correct Answer: A
Explanation:
Optical disks use a low-power laser beam for reading/writing.
Related Question 4
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 5
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.