JOIN ADRE 2.0 Telegram Group

Data Communication Quiz | Data Communication Short Questions and Answers

Questions
41 A(n)_________ signal is a composite analog signal with an infinite bandwidth.
A digital
B analog
C either (a) or (b)
D neither (a) nor (b)

Answer: digital
42 _____ signals can have an infinite number of values in a range.
A Analog
B Digital
C (a) or (b)
D None of the above

Answer: Analog
Advertisement
Article and Schedule Quiz Start Test!

DOWNLOAD CURRENT AFFAIRS PDF FROM APP

43 What is the bandwidth of a signal that ranges from 1 MHz to 4 MHz?
A 1 KHz
B 3 MHz
C 4 MHz
D none of the above

Answer: 3 MHz
44 For a ______ channel, we need to use the Shannon capacity to find the maximum bit rate.
A noiseless
B noisy
C low-pass
D bandpass

Answer: noisy
45 _______ data have discrete states and take discrete values.
A Analog
B Digital
C (a) or (b)
D None of the above

Answer: Digital
46 A sine wave is ________.
A periodic and discrete
B aperiodic and discrete
C periodic and continuous
D aperiodic and continuous

Answer: periodic and continuous
47 Signals can be ________.
A digital
B analog
C either (a) or (b)
D neither (a) nor (b)

Answer: either (a) or (b)
48 ________ is a type of transmission impairment in which the signal loses strength due to the different propagation speeds of each frequency that makes up the signal.
A Noise
B Distortion
C Attenuation
D Decibel

Answer: Distortion
49 Data can be ________.
A digital
B analog
C (a) or (b)
D none of the above

Answer: (a) or (b)
50 Before data can be transmitted, they must be transformed to ________.
A periodic signals
B electromagnetic signals
C aperiodic signals
D low-frequency sine waves

Answer: electromagnetic signals
51 _______ signals can have only a limited number of values.
A Digital
B Analog
C (a) or (b)
D None of the above

Answer: Digital
52 The _________ product defines the number of bits that can fill the link.
A delay-amplitude
B frequency-amplitude
C bandwidth-period
D bandwidth-delay

Answer: bandwidth-delay
53 A _________ sine wave is not useful in data communications; we need to send a _______ signal.
A single-frequency; composite
B composite; single-frequency This is the correct answer.
C single-frequency; double-frequency
D none of the above

Answer: single-frequency; composite
54 When propagation speed is multiplied by propagation time, we get the ________.
A wavelength of the signal
B throughput
C distance a signal or bit has traveled
D distortion factor

Answer: distance a signal or bit has traveled
55 Frequency and period are ______.
A proportional to each other
B inverse of each other
C the same
D none of the above

Answer: inverse of each other
56 _______ data are continuous and take continuous values.
A digital
B analog
C (a) or (b)
D none of the above

Answer: analog
57 In a time-domain plot, the horizontal axis is a measure of ________.
A phase
B signal amplitude
C frequency
D time

Answer: time
58 If the bandwidth of a signal is 5 KHz and the lowest frequency is 52 KHz, what is the highest frequency?
A 5 KHz
B 47 KHz
C 57 KHz
D 10 KHz

Answer: 57 KHz
59 A sine wave in the ______ domain can be represented by one single spike in the _____ domain.
A time; phase
B frequency; time
C time; frequency
D phase; time

Answer: time; frequency
60 ________ is a type of transmission impairment in which the signal loses strength due to the resistance of the transmission medium.
A Distortion
B Attenuation
C Noise
D Decibel

Answer: Attenuation

ADRE 2.0 FULL LENGTH MOCK TEST

Take Mock Tests

Missiles Mock Test Start Test!
SSC MTS Mock Test Start Test
IBPS CLERK MOCK TEST Start Test
SSC MTS 2022 JULY 26 Shift 1 (ENGLISH) Start Test!
SSC GD Previous Year Paper 2021 Nov 17 Shift - I (Hindi) Start Test!
SSC CGL Tier - 1 PYP 2022 April 21 Shift- 1 (ENGLISH) Start Test!
MPSC PAPER I MOCK TEST 1 (ENGLISH) Start Test!
IB Security Assistant Mock test 1 (english) Start Test!
UP POLICE CONSTABLE MOCK TEST 1 Start Test!
DELHI POLICE CONSTABLE MOCK TEST 1 (HINDI) Start Test!
Advertisement
Assam Direct Recruitment Test Series