Question:

What is the measurment unit of bandwidth?

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Analog bandwidth \(\rightarrow\) Hertz (Hz).
Digital bandwidth data transfer rate \(\rightarrow\) bits per second (bps).
Bytes (KB, MB) quantify data size/volume, not transmission bandwidth.
Updated On: Sep 7, 2026
  • Hertz
  • Kilobytes
  • Milliseconds
  • Megabytes
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The Correct Option is A

Solution and Explanation

Concept:
Bandwidth refers to the data-carrying capacity of a transmission medium.
Depending on whether the channel is analyzed in the analog frequency domain or the digital data domain, bandwidth is quantified in cycles per second or bits per second.

Step 1: Evaluating Units for Bandwidth:

- In analog systems and fundamental telecommunications, bandwidth is defined as the width of the frequency band allocated for transmission (the difference between the upper and lower cutoff frequencies). Its standard unit of measurement is Hertz (Hz), along with its multiples (kHz, MHz, GHz).
- In digital networks, transmission speed is often expressed in bits per second (bps).

Step 2: Evaluating the Given Options:

- Hertz (Hz) is the standard SI unit for frequency and analog transmission bandwidth.
- Kilobytes and Megabytes measure storage capacity or volume of data, not rates or bandwidth.
- Milliseconds measure time or latency.
Final Answer:
Hertz is the recognized unit of measurement for bandwidth among the choices. Thus, option (A) is correct.
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