Answer the following review questions in short. 1. List three common examples of

Question

Answer the following review questions in short.

1. List three common examples of frequency division multiplexing.

2. Frequency division multiplexing is often associated with what type of signals?

3. In what order does synchronous time division multiplexing sample each of the incoming signals?

4. What would happen if a synchronous time division multiplexor sampled the incoming signals out of order?

5. How does a synchronous time division multiplexor stay synchronized with the demultiplexor on the receiving end?

6. How many separate channels does a T-1 multiplexor combine into one stream?

7. What are the main differences between statistical time division multiplexing and synchronous time division multiplexing?

8. If a statistical multiplexor is connected to 20 devices, does it require a high-speed output line that is equivalent to the sum of the 20 transmission streams? Defend

your response.

9. Why is addressing of the individual data streams necessary for statistical multiplexing?

10. What type of medium is required to support wavelength division multiplexing?

11. How is discrete multitone different from the other multiplexing techniques? How is it similar?

12. How does code division multiplexing distinguish one signal from another?

13. What are the two basic forms of compression?

14. Run-length encoding can be used to compress what kind(s) of data?

15. What are the three phases of JPEG compression?

Explanation / Answer

first of all chegg allow us to answer maximum 4 question.

14) when you want to do lossless data compression then we go for Run-Length Encoding

1)examples of frequency division multiplexing.::::: broadcast Television, radio, cable television.

2)Analog Signals

3) Synchronous Time Division Multiplexing samples incoming signals in round -Robin order

4) The demultiplexor would not know what was what.

5)There are sync bits inserted in the transmission stream at regular intervals.

6) 24 separate channels a T-1 multiplexor combine into one stream

7)Sync: continuous bit stream, never out of order; Stat: packets or frames of data, order may vary.

8) No

9) Because data stream based on the demand.

10) fiber optics cable provide approperiate medium to support wavelength division multiplexing

13) Lossless and lossy are the two types of data compression technique.

15) 3 phases of JPEG Compresion are as follow Discrete cosine transformation, quantization, run-length encoding.

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