WGU D413 PA– Telecommunications & Wireless
Communications | Practice Questions & Answers| 2026
What is bandwidth?
>The maximum theoretical capacity of a network communication link
>The instantaneous data-sending rate of network data transmission
>The difference between the highest and lowest frequency of data signals
>The length of time for a signal wave to complete one complete cycle
>The maximum theoretical capacity of a network communication link
Which factor contributes to signal attenuation?
Noise
Short travel distance
Bandwidth
Network congestion
Noise
,Which term is defined as the number of cycles a signal completes in one second?
Frequency
Transmission rate
Peak amplitude
Bandwidth
Frequency
How is phase defined?
A wave position relative to a reference position
The total data capacity of network transmission
A stage of the pattern of sending and receiving signals
The amount of time a signal needs to finish one cycle
A wave position relative to a reference position
What is the absolute value of a signal's greatest magnitude in proportion to the
energy that it is able to carry?
Peak amplitude
, Period
Spread
Delta
Peak amplitude
What is one advantage of twisted-pair cables over fiber-optic cables?
They require less skill and experience to install.
They transmit signals over longer distances.
They are less susceptible to electromagnetic interference.
They have higher data transmission rates.
They require less skill and experience to install.
What is one characteristic of coaxial cables?
They use a dielectric insulator to reduce electromagnetic field interference.
They can transmit signals to a maximum of 100 MHz.
They transmit only analog signals.
They make use of light in signal transmission from one point to another.
They use a dielectric insulator to reduce electromagnetic field interference.
Communications | Practice Questions & Answers| 2026
What is bandwidth?
>The maximum theoretical capacity of a network communication link
>The instantaneous data-sending rate of network data transmission
>The difference between the highest and lowest frequency of data signals
>The length of time for a signal wave to complete one complete cycle
>The maximum theoretical capacity of a network communication link
Which factor contributes to signal attenuation?
Noise
Short travel distance
Bandwidth
Network congestion
Noise
,Which term is defined as the number of cycles a signal completes in one second?
Frequency
Transmission rate
Peak amplitude
Bandwidth
Frequency
How is phase defined?
A wave position relative to a reference position
The total data capacity of network transmission
A stage of the pattern of sending and receiving signals
The amount of time a signal needs to finish one cycle
A wave position relative to a reference position
What is the absolute value of a signal's greatest magnitude in proportion to the
energy that it is able to carry?
Peak amplitude
, Period
Spread
Delta
Peak amplitude
What is one advantage of twisted-pair cables over fiber-optic cables?
They require less skill and experience to install.
They transmit signals over longer distances.
They are less susceptible to electromagnetic interference.
They have higher data transmission rates.
They require less skill and experience to install.
What is one characteristic of coaxial cables?
They use a dielectric insulator to reduce electromagnetic field interference.
They can transmit signals to a maximum of 100 MHz.
They transmit only analog signals.
They make use of light in signal transmission from one point to another.
They use a dielectric insulator to reduce electromagnetic field interference.
