What are the main features of a receiver?

a) Synchronization

b) Multiple parallel receiver chain

c) Synchronization & Multiple parallel receiver chain

d) None of the mentioned

2. What conditions must be fulfilled in a good digital communication system?

a) High data rate

b) High fidelity

c) Low transmit power

d) All of the mentioned

3. Wired channels are

a) Lossy

b) Lossless

c) Lossy & Lossless

d) None of the mentioned

4. The equivalent temperature in a receiver design must be kept

a) Low

b) High

c) Does not affect the receiver

d) None of the mentioned

5. Which corrects the sampling time problem in a digital system?

a) Interpolator

b) Decimator

c) Equalizer

d) Filter

6. What are the main features of a transmitter?

a) Higher clock speed

b) Linear power amplifier

c) Directional antennas

d) All of the mentioned

7. Transmission media used in low frequency band are

a) Air

b) Water

c) Copper cable

d) All of the mentioned

8. Transmission media used for medium frequency band are

a) Coaxial cable

b) Copper cable

c) Optical fiber

d) All of the mentioned

9. Matched filter technique is used to

a) Increase SNR

b) Decrease SNR

c) SNR is not affected

d) None of the mentioned

10. Matched filter can also be used as least squares estimator.

a) True

b) False