Bandwidth in communication – UGC NET Question

Bandwidth represents the data-carrying capacity of a link, typically measured in bits per second or its multiples. Higher bandwidth allows more data to be sent in a given time.

Option A:
Cable width is a physical dimension; while it can influence possible bandwidth, it is not what the term “bandwidth” itself means in ICT.

Option B:
This option correctly defines bandwidth as the upper limit on data transfer rate through a channel.

Option C:
Number of users may affect congestion but is not itself bandwidth.

Option D:
Uptime or on-time is unrelated to the technical concept of channel capacity.