Cognitive Radio Mock Test 5

10%

Question 1 of 10

1. ____ affects range accuracy adaption.

Bandwidth

Symbol rate

Resonance frequency

Bit rate

Question 1 of 10

Question 2 of 10

2. Bit error rate depends on ____

route

channel

receiver

source

Question 2 of 10

Question 3 of 10

3. Tracking the position of cognitive radio without ____

authorization is an adversarial attack

authentication violates user privacy

authentication is an adversarial attack

authorization violates user privacy

Question 3 of 10

Question 4 of 10

4. Which among the following is a monitor parameter of BER?

Noise power

Bandwidth

Transmission power

Path loss

Question 4 of 10

Question 5 of 10

5. Which among the following is an expression for spectral efficiency?

η=R_sB where R_s is the symbol rate, B is the bandwidth, K is the number of bits per symbol

η=\(\frac{Bk}{R_s}\)where R_s is the symbol rate, B is the bandwidth, K is the number of bits per symbol

η=\(\frac{R_sk}{B}\). where R_s is the symbol rate, B is the bandwidth, K is the number of bits per symbol

η=BK where B is the bandwidth

Question 5 of 10

Question 6 of 10

6. Which among the following is a parameter for Cramer-Rao lower bound?

Bayesian statistics

Decision theory

Wald test

Fisher information

Question 6 of 10

Question 7 of 10

7. Bayesian network can match ____ with ____

an incident, probable cause

a definite cause, probable consequence

a incident, similar incident

a cause, similar cause

Question 7 of 10

Question 8 of 10

8. Which among the following is not an action carried out in image formation?

Conversion of photon into electron

Analog to digital conversion

Digital to analog conversion

Conversion of signal charge to electrical signal

Question 8 of 10

Question 9 of 10

9. Environment based method has ____ waveform based method.

equal complexity as

lower complexity than

higher complexity than

equal time duration as

Question 9 of 10

Question 10 of 10

10. The closed loop feedback exists ____

between receiver and environment

between transmitter and environment

among transmitter, environment, and receiver

between transmitter and receiver

Question 10 of 10