Communication Channel MCQ : Here you will find MCQ Questions related to "Communication channel" in Analog Communication. These Communication channel MCQ Questions Will help you to improve your Analog Communication knowledge and will prepare you for various Examinations like Competitive Exams, Placements, Interviews and other Entrance Exmaniations.
Question 1
A channel has a certain capacity for transmitting information, often measured by ?
A. hz
B. V
C. I
D. Z
View Answer
Ans : A
Explanation: A channel has a certain capacity for transmitting information, often measured by its bandwidth in Hz or its data rate in bits per second.
Question 2
Communicating data from one location to another requires some form of pathway or medium. These pathways, called?
A. information theory
B. communication broadcast
C. communication channels
D. information signal
View Answer
Ans : C
Explanation: Communicating data from one location to another requires some form of pathway or medium. These pathways, called communication channels
Question 3
How many types of media used by communication channels?
A. 1
B. 2
C. 3
D. 4
View Answer
Ans : B
Explanation: communication channels use two types of media: cable (twisted-pair wire, cable, and fiber-optic cable) and broadcast (microwave, satellite, radio, and infrared).
Question 4
In a communications system, the physical or logical link that connects a data source to a ?
A. data link
B. data receiver
C. data sink
D. data channel
View Answer
Ans : C
Explanation: In a communications system, the physical or logical link that connects a data source to a data sink.
Question 5
Noise is added to a signal ________
A. At receiving antenna
B. At transmitting antenna
C. During regeneration of information
D. In the channel
View Answer
Ans : D
Explanation: Noise is an unwanted signal that gets mixed with the transmitted signal while passing through the channel. The noise interferes with the signal and provides distortion in received signal. The transmitting antenna transmits modulated message signal while the receiving antenna receives the transmitted signal. Regeneration of information refers to demodulating the received signal to produce the original message signal.
Question 6
Low frequency noise is ________
A. Shot noise
B. Flicker noise
C. Thermal noise
D. Partition Noise
View Answer
Ans : B
Explanation: Flicker noise is a type of electronic noise which is generated due to fluctuations in the density of carrier. It’s also known as 1/f as it’s power spectral density increases with a decrease in frequency or increase in offset from a signal.
Question 7
A point-to-multipoint channel, also known as broadcasting medium
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
View Answer
Ans : A
Explanation: True, A point-to-multipoint channel, also known as broadcasting medium
Question 8
Sin wave is ________
A. Aperiodic Signal
B. Random Signal
C. Deterministic Signal
D. Periodic Signal
View Answer
Ans : D
Explanation: Periodic signal is that which repeats itself after a regular interval. Sin wave is a periodic function since it’s value can be determined at any point of time, as it repeats itself at a regular interval.
Question 9
Notch is a ________
A. High pass filter
B. Low pass filter
C. Band stop filter
D. Band paas filter
View Answer
Ans : C
Explanation: Notch filter is a band stop filter that allows most frequencies to pass through it, except frequencies in a specific range. It is just opposite of a band-pass filter. High pass filter allows higher frequencies to pass while Low pass filter allows lower frequencies to pass through it.
Question 10
A unicasting channel is a channel that provides a unicasting service, i.e. that sends data addressed to one specific user.
A. TRUE
B. FALSE
C. Can be true or false
D. Can not say
View Answer
Ans : A
Explanation: True, A unicasting channel is a channel that provides a unicasting service, i.e. that sends data addressed to one specific user.