Question
A group of four bits is called a:
This question was previously asked in
RRB NTPC 2019 CBT 1 Question Paper (8-Mar-2021) (Shift 2)
The correct answer is
nibble
Understanding Digital Data Units
Digital information is measured in bits and bytes. A single bit is the smallest unit, representing either a 0 or a 1.
Let's look at the common groupings:
- A nibble consists of a group of four bits (4 bits).
- A byte consists of a group of eight bits (8 bits). Note that 1 byte = 2 nibbles.
Larger units exist, such as:
- A kilobyte (KB) is approximately 1000 bytes.
- A megabyte (MB) is approximately 1000 kilobytes.
Identifying the Correct Term
The question asks for the name of a group of four bits.
Based on the definitions:
- Megabyte and Kilobyte represent much larger amounts of data.
- A Byte is 8 bits.
- A Nibble is exactly 4 bits.
Therefore, the correct term for a group of four bits is a nibble.
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