In this section of Data Communication and Networking – Bandwidth Utilization Multiplexing Spreading MCQ (Multiple Choice) based questions and answers,it cover the below lists of topics.All the Multiple Choice Questions and Answers (MCQs) have been compiled from the book of Data Communication and Networking by The well known author behrouz forouzan.
- Frequency division multiplexing (FDM) MCQs.
- Wave division multiplexing (WDM) MCQs.
- Time division multiplexing (TDM) MCQs.
PRACTICE IT NOW TO SHARPEN YOUR CONCEPT AND KNOWLEDGE
1. In a multiplexed system, __ lines share the bandwidth of ____ link.
- 1; n
- 1; 1
- n; 1
- n; n
C. n; 1
2. The word ______ refers to the portion of a _______ that carries a transmission
- channel; link
- link; channel
- line; channel
- line; link
A. channel; link
3. ______ can be applied when the bandwidth of a link (in hertz) is greater than the combined bandwidths of the signals to be transmitted.
- TDM
- FDM
- Both (a) or (b)
- Neither (a) or (b)
B. FDM
4. FSM is an _________technique
- analog
- digital
- either (a) or (b)
- none of the above
A. analog
5. ____ is designed to use the high bandwidth capability of fiber-optic cable.
- FDM
- TDM
- WDM
- None of the above
C. WDM
6. ______ is an analog multiplexing technique to combine optical signals.
- FDM
- TDM
- WDM
- None of the above
C. WDM
7. _____ is a digital process that allows several connections to share the high bandwidth of a link.
- FDM
- TDM
- WDM
- None of the above
B. TDM
8. ____ is a digital multiplexing technique for combining several low-rate channels into one high-rate one
- FDM
- TDM
- WDM
- None of the above
B. TDM
9. We can divide ____ into two different schemes: synchronous or statistical
- FDM
- TDM
- WDM
- none of the above
B. TDM
10. In ________ TDM, each input connection has an allotment in the output even if it is not sending data.
- synchronous
- statistical
- isochronous
- none of the above
A. synchronous
11. The sharing of a medium and its link by two or more devices is called _______.
- modulation
- encoding
- line discipline
- multiplexing
D. multiplexing
12. Which multiplexing technique transmits analog signals?
- FDM
- TDM
- WDM
- (a) and (c)
D. (a) and (c)
13. Which multiplexing technique transmits digital signals?
- FDM
- TDM
- WDM
- None of the above
B. TDM
14. Which multiplexing technique shifts each signal to a different carrier frequency?
- FDM
- TDM
- Both (a) and (b)
- None of the above
A. FDM
15. In synchronous TDM, for n signal sources of the same data rate, each frame contains _______ slots.
- n
- n + 1
- n - 1
- 0 to n
A. n
16. In TDM, the transmission rate of the multiplexed path is usually _______ the sum of the transmission rates of the signal sources.
- greater than
- less than
- equal to
- not related to
A. greater than
17. Which multiplexing technique involves signals composed of light beams?
- FDM
- TDM
- WDM
- none of the above
C. WDM
18. _________ utilization is the use of available bandwidth to achieve specific goals.
- Frequency
- Bandwidth
- Amplitude
- None of the above
B. Bandwidth
19. ________ can be achieved by using multiplexing; ______ can be achieved by using spreading.
- Efficiency; privacy and antijamming
- Privacy and antijamming; efficiency
- Privacy and efficiency; antijamming
- Efficiency and antijamming; privacy
A. Efficiency; privacy and antijamming
20. _______ is the set of techniques that allows the simultaneous transmission of multiple signals across a single data link.
- Demodulating
- Multiplexing
- Compressing
- None of the above
B. Multiplexing
