WGU D413 PA (Latest 2026/2027 Update) Telecomm and Wireless Communications | Pre-Assessment Study Questions with Verified Answers| 100% Correct.

WGU D413 PA (Latest 2026/2027 Update)
Telecomm and Wireless Communications |
Pre-Assessment Study Questions with
Verified Answers| 100% Correct.
Question:
What is the absolute value of a signal's greatest magnitude in proportion
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to the energy that it is able to carry?
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Peak amplitude
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Period

Spread

Delta?

Answer:
Peak amplitude
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Question:

What is one advantage of twisted-pair cables over fiber-optic cables?
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They require less skill and experience to install.
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They transmit signals over longer distances.
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,They are less susceptible to electromagnetic interference.
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They have higher data transmission rates.?
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Answer:

They require less skill and experience to install.
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Question:
What is one characteristic of coaxial cables?
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They use a dielectric insulator to reduce electromagnetic field interference.
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They can transmit signals to a maximum of 100 MHz.
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They transmit only analog signals.
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They make use of light in signal transmission from one point to another.?
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Answer:
They use a dielectric insulator to reduce electromagnetic field interference.
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Question:

What is a characteristic of fiber-optic cables?
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They are composed of a core, cladding, a buffer, and a jacket.
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They have large diameters and tend to be heavy.
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They have four nodes in most cases.
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,They only carry data over distances of 2-100 meters.?
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Answer:

They are composed of a core, cladding, a buffer, and a jacket.
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Question:

What is bandwidth?
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>The maximum theoretical capacity of a network communication link
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>The instantaneous data-sending rate of network data transmission
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>The difference between the highest and lowest frequency of data signals
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>The length of time for a signal wave to complete one complete cycle?
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Answer:

>The maximum theoretical capacity of a network communication link
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Question:

Which factor contributes to signal attenuation?
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Noise

Short travel distance
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Bandwidth

Network congestion? i,-




Answer:

, Noise




Question:

Which term is defined as the number of cycles a signal completes in one
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second?



Frequency

Transmission rate i,-




Peak amplitude
i,-




Bandwidth?
Answer:
Frequency




Question:

How is phase defined?
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A wave position relative to a reference position
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The total data capacity of network transmission
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A stage of the pattern of sending and receiving signals
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The amount of time a signal needs to finish one cycle?
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Answer: