Mobile Computing and Wireless Communication (2170710) MCQs

MCQs of Cellular Wireless Networks

Showing 11 to 20 out of 35 Questions
1 2 3 4
11.

In Amplitude modulation which is the constant parameter

(a)

Frequency and phase
(b)

Amplitude and phase
(c)

Amplitude and frequency
(d)

Amplitude and propagation
Answer:

Option (a)

12.

Which modulation technique is used in FM Radio broadcasting?

(a)

Amplitude Modulation
(b)

Frequency Modulation
(c)

Phase Modulation
(d)

Wavelength Modulation
Answer:

Option (b)

13.

Which modulation technique has a higher SNR value comparatively?

(a)

Quantization
(b)

Delta Modulation 
(c)

Pulse Code Modulation 
(d)

Phase Modulation
Answer:

Option (c)

14.

In which spread spectrum technique the signal is broadcast over seemingly random series of radio frequencies

(a)

FHSS
(b)

DSSS
(c)

CSMA 
(d)

CDMA
Answer:

Option (a)

15.

In which spread spectrum the technique combines digital information stream with the spreading code bitstream using exclusive-OR

(a)

FHSS
(b)

DSSS
(c)

CSMA 
(d)

CDMA
Answer:

Option (b)

16.

In DSSS, given data=10, Spread Code=0011, find the resultant generated Spread code.

(a)

0101 0101 
(b)

1111 1111
(c)

1100 0011
(d)

1101 0011
Answer:

Option (c)

17.

_____Error Detection Techniques is based in binary division

(a)

Parity Check
(b)

Cyclic Redundancy Check (CRC)
(c)

Checksum
(d)

CRC and Checksum both
Answer:

Option (b)

18.

In CRC, if Data=1010000 and Divisor=1001, then calculate CRC(Remainder)

(a)

011
(b)

111
(c)

101
(d)

110
Answer:

Option (a)

19.

Which block code is capable of detecting up to two simultaneous bit errors and correcting single-bit errors?

(a)

Convolution Codes
(b)

Cyclic Code
(c)

Hamming Code
(d)

BCH Code
Answer:

Option (c)

20.

_____ is also known as Positive Acknowledgement with Retransmission (PAR)

(a)

ARQ
(b)

Cyclic Code
(c)

Hamming Code
(d)

Convolution Code
Answer:

Option (a)

Showing 11 to 20 out of 35 Questions
1 2 3 4