Selected MCQ

Current Question
Which of the following is a binary number?
  • A. 1001
  • B. 1002
  • C. 1005
  • D. 1006
Correct Answer: A
Explanation:
1001 is a valid binary number (only 0s and 1s).
Related Question 1
Which of the following functions in Microsoft Excel counts the number of cells with numerical data in the argument?
  • A. COUNT
  • B. AVERAGE
  • C. SUM
  • D. MAX
Correct Answer: A
Explanation:
COUNT tallies only numeric cells.
Related Question 2
Which of the following is a combination of binary coded decimal is ____.
  • A. Two Binary Digits
  • B. Three Binary Digits
  • C. Four Binary Digits
  • D. None of these
Correct Answer: C
Explanation:
Binary Coded Decimal (BCD) uses 4 binary digits to represent each decimal digit.
Related Question 3
Collection of characters, numbers, and symbols is called ____.
  • A. Data
  • B. Keyboard
  • C. Monitor
  • D. Ram
Correct Answer: A
Explanation:
Raw characters, numbers, and symbols together form data.
Related Question 4
All the following are examples of storage devices EXCEPT ____.
  • A. Hard disk drives
  • B. Printers
  • C. Floppy disk drives
  • D. CD drives
Correct Answer: B
Explanation:
Printers are output devices, not storage devices.
Related Question 5
All the following are examples of real security and privacy risks EXCEPT ____.
  • A. Hackers
  • B. Spam
  • C. Viruses
  • D. Identity theft
Correct Answer: B
Explanation:
Spam is unwanted email, but it is not primarily a security/privacy risk, unlike the others.