Cognitive Radio Mock Test 8

10%

Question 1 of 10

1. Which among the following is a challenge for spectrum decision models?

Combining multiple characterization parameters

Maintaining a decision model for each characterization parameter

Supporting multiple spectrum bands

Supporting OFDM networks

Question 1 of 10

Question 2 of 10

2. Which among the following should be adapted in spectrum mobility management?

Single-layer approach

Cross-layer approach

Alternate layer approach

Double layer approach

Question 2 of 10

Question 3 of 10

3. Which among the following is integrated in IEEE 802.22 Wireless Regional Area Network?

Spectrum decision model

Route decision model

Back up channel list

Interference floor

Question 3 of 10

Question 4 of 10

4. What is a non-handoff?

xG user selects a channel from the unlicensed band

xG user eliminates a primary user in the unlicensed band

xG user removes another user in the unlicensed band

xG user selects a channel in the licensed spectrum band

Question 4 of 10

Question 5 of 10

5. Which among the following is the basic unit of spectrum pool?

Contiguous unlicensed spectrum band

Non-contiguous licensed spectrum band

Contiguous licensed spectrum band

Question 5 of 10

Question 6 of 10

6. Which among the following is not an operational unit in energy detection?

Correlator

Squaring unit

Threshold device

Integrator

Question 6 of 10

Question 7 of 10

7. The selection of a common control channel is difficult in centralized networks.

False

True

Question 7 of 10

Question 8 of 10

8. Prediction of availability of channels can mitigate sensing delay.

True

False

Question 8 of 10

Question 9 of 10

9. Which among the following condition is represented in the following diagram?

Shadowing uncertainty

Transmitter uncertainty

Access point uncertainty

Receiver uncertainty

Question 9 of 10

Question 10 of 10

10. Which among the following is achieved by coupling a modulated signal with a sine wave carrier?

Causality

Stability

Periodicity

Linearity

Question 10 of 10