Which of the following is a method of multiplexing data where a communication channel is divided into an arbitrary number of variable bit-rate digital channels or data streams. This method allocates b

The correct answer is C. Statistical multiplexing. Statistical multiplexing (also called statistical time-division multiplexing or stat-mux) dynamically allocates bandwidth on demand. Unlike fixed time-division multiplexing (TDM), which assigns dedicated time slots regardless of whether a channel has data, statistical multiplexin

Submitted by haruto_sh· Apr 18, 2026Network and Communications Security

Question

Which of the following is a method of multiplexing data where a communication channel is divided into an arbitrary number of variable bit-rate digital channels or data streams. This method allocates bandwidth dynamically to physical channels having information to transmit?

Options

ATime-division multiplexing
BAsynchronous time-division multiplexing
CStatistical multiplexing
DFrequency division multiplexing

How the community answered

(26 responses)

B
4% (1)
C
92% (24)
D
4% (1)

Explanation

Statistical multiplexing (also called statistical time-division multiplexing or stat-mux) dynamically allocates bandwidth on demand. Unlike fixed time-division multiplexing (TDM), which assigns dedicated time slots regardless of whether a channel has data, statistical multiplexing only allocates bandwidth to channels that are actively transmitting. This results in more efficient use of the shared channel. Option A (TDM) uses fixed, pre-assigned time slots. Option B (Asynchronous TDM) improves on TDM but is less dynamic than statistical multiplexing. Option D (FDM) divides the channel by frequency, not time or demand.

Topics

#Multiplexing#Statistical Multiplexing#Network Protocols#Data Transmission

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