Wireless and Mobile Communications Mock Test 7

10%

Question 1 of 10

1. The bandwidth of FDMA channel is ______

Large

Wide

Narrow

Zero

Question 1 of 10

Question 2 of 10

2. Narrowband FDMA allows users to share the same radio channel allocating a unique time slot to each user.

False

True

Question 2 of 10

Question 3 of 10

3. For a n bit quantizer, number of levels is equal to __________

2ⁿ

n²

Question 3 of 10

Question 4 of 10

4. A TDMA system uses 25 MHz for the forward link, which is broken into radio channels of 200 kHz. If 8 speech channels are supported on a single radio channel, how many simultaneous users can be accommodated?

1000

1600

200

Question 4 of 10

Question 5 of 10

5. Which of the following is true for baseband RELP codec?

Good quality of speech, low complexity

Good quality of speech, high complexity

Bad quality of speech, high complexity

Bad quality of speech, low complexity

Question 5 of 10

Question 6 of 10

6. Frequency domain coders divides the speech signal into __________

A set of frequency components

A set of phase components

A set of different amplitudes

A set of time delays

Question 6 of 10

Question 7 of 10

7. Which of the following is true for MPE-LTP codec?

Good quality of speech, high complexity

Bad quality of speech, low complexity

Bad quality of speech, high complexity

Good quality of speech, low complexity

Question 7 of 10

Question 8 of 10

8. Which of the following is an important factor in determining spectral efficiency of the system?

Vocoder

Cell size

Modulation technique

Multiple access technique

Question 8 of 10

Question 9 of 10

9. Speech coders are categorized on the basis of __________

Bandwidth of the signal

Phase of the signal

Frequency of signal

Signal compression techniques

Question 9 of 10

Question 10 of 10

10. In Adaptive Delta Modulation, the slope error reduces and ___________

Quantization error decreases

Quantization error remains same

None of the mentioned

Quantization error increases

Question 10 of 10