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Computer & IT MCQs

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A combination of 16 bits is called ____.

  • A. Bit
  • B. Word
  • C. Nibble
  • D. 1024 Bits
Explanation:
16 bits together form one word.

Sequence of 4 bits is called ____.

  • A. Nibble
  • B. Byte
  • C. Kilobyte
  • D. Megabyte
Explanation:
Four bits together are known as ____—a nibble.

In computer science, Half-byte is also known as ____.

  • A. Word
  • B. Four bits
  • C. Nibble
  • D. None of these
Explanation:
A group of four bits is called a nibble (half-byte).

Eight bits are equal to one byte.

  • A. Word
  • B. Four bits
  • C. Nibble
  • D. None of these
Explanation:
Eight bits form one byte; four bits form a nibble.

How many bits are equal to one byte?

  • A. 2
  • B. 4
  • C. 8
  • D. 5
Explanation:
One byte consists of exactly 8 bits.

A bit can be:

  • A. 1 and 0
  • B. 1 or 0
  • C. 1 only
  • D. Memory
Explanation:
A bit is the smallest unit of data and can only be 0 or 1.

The binary system is composed of the values 1 & 0 and means:

  • A. On
  • B. Off
  • C. Start
  • D. Low
Explanation:
In binary, 0 represents off, and 1 represents on.

Binary coded is in the form of ____.

  • A. 0, 1
  • B. 1, 2
  • C. 1, 2
  • D. None of these
Explanation:
Binary code is represented only by the digits 0 and 1.

Q – Q

  • A. Two Binary Digits
  • B. Three Binary Digits
  • C. Four Binary Digits
  • D. None of these
Explanation:
Binary Coded Decimal (BCD) uses four binary digits to represent one decimal digit.

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
Explanation:
Binary Coded Decimal (BCD) uses 4 binary digits to represent each decimal digit.

Computer & IT MCQs for CSS Preparation

Practice Important Questions

This section provides important MCQs with answers and explanations to help candidates prepare effectively for CSS, PMS, and other competitive exams.

Improve Conceptual Understanding

Each MCQ is designed to strengthen your understanding of key concepts and improve analytical thinking required in exams.

Exam-Oriented Preparation

These MCQs follow actual exam patterns, helping aspirants practice relevant questions and improve performance.

Useful for CSS and PMS Exams

This collection is highly beneficial for CSS, PMS, and other competitive exams, improving accuracy and confidence.