WGU D413 TELECOMM AND WIRELESS COMMUNICATIONS VN01 EXAM QUESTIONS & ANSWERS 2… EXAM
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU D413 Telecomm and Wireless
Communications VN01 Exam
Questions & Answers 2026-2027 |
Latest Verified Exam (Rationales)
Verified Answers Exam Ready With Rationales
75 QUESTIONS
DOCUMENT OVERVIEW
This document provides 75 verified exam questions with correct answers and detailed rationales focused on
telecommunication and wireless communications. It serves as a comprehensive resource for understanding
key concepts in the field. Students can utilize it for effective study, thorough review, and targeted
certification preparation.
CONTENTS
01 Multiplexing Techniques Q1–Q15
02 Networking Devices Q16–Q23
03 Cable Types Q24–Q37
04 Wireless Standards Q38–Q53
05 ISO Standards Q54–Q59
06 Network Protocols Q60–Q63
07 Cabling Techniques Q64–Q70
08 Security Protocols Q71–Q75
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 75
Frequency Division Multiplexing (FDM)
CORRECT ANSWER
Divides the available bandwidth into frequency bands, and each band is used for a different communication channel.
RATIONALE
Frequency Division Multiplexing allocates distinct frequency bands within the total bandwidth to enable simultaneous transmission of multiple
signals, maximizing channel capacity and minimizing interference among channels. This technique is foundational in telecommunications,
allowing for efficient utilization of available spectrum.
Q2 QUESTION 2 OF 75
Frequency Division Multiplexing (FDM)
CORRECT ANSWER
Multiplexing used for television network to broadcast local news content using analog signals.
RATIONALE
Frequency Division Multiplexing (FDM) allocates distinct frequency bands to multiple signals, allowing simultaneous transmission over a single
medium, which is crucial for efficiently broadcasting local news content in analog television networks without interference. This technique
maximizes bandwidth utilization by separating channels within the frequency spectrum.
Q3 QUESTION 3 OF 75
Wavelength Division Multiplexing (WDM)
CORRECT ANSWER
Optical multiplexing using different light wavelengths for channels.
RATIONALE
Optical multiplexing leverages multiple wavelengths of light to transmit different data streams simultaneously over a single optical fiber,
maximizing bandwidth efficiency and increasing the capacity of communication systems. This technique is fundamental in modern
telecommunications, allowing for the simultaneous transmission of diverse signals without interference.
Q4 QUESTION 4 OF 75
Page 2
, Wavelength Division Multiplexing (WDM)
CORRECT ANSWER
Multiplexing used commonly in telecommunication systems and computer networks that use laser systems to send light signals over
fiber optic cables.
RATIONALE
Wavelength Division Multiplexing (WDM) enables multiple light signals to be transmitted simultaneously over a single fiber optic cable by
utilizing different wavelengths, thereby increasing bandwidth efficiency and optimizing telecommunication and networking capabilities. This
technique is fundamental in modern broadband systems, allowing for high data transfer rates and improved capacity.
Q5 QUESTION 5 OF 75
Time-division multiplexing (TDM)
CORRECT ANSWER
Used to send and receive digital signals between connected devices
RATIONALE
Time-division multiplexing (TDM) allocates time slots to multiple digital signals over a single communication channel, enabling efficient
utilization of bandwidth while maintaining clear separation of data streams. This technique is essential for maximizing data transmission
efficiency in digital communication systems.
Q6 QUESTION 6 OF 75
Time-division multiplexing (TDM)
CORRECT ANSWER
Each user periodically gets the entire bandwidth for a small burst of time, i.e. entire channel is dedicated to one user but only for a short
period of time.
RATIONALE
Time-division multiplexing allocates the entire bandwidth of a channel to individual users in discrete time slots, allowing for efficient sharing of
resources while maintaining the performance of each user's data transmission. This technique maximizes channel utilization by ensuring that
each user can transmit data without interference during their designated time period.
Q7 QUESTION 7 OF 75
Time-division multiplexing (TDM)
CORRECT ANSWER
It is very extensively used in computer communication and telecommunication.
Page 3
P R O F E S S I O N A L P R A C T I C E M AT E R I A L S
WGU D413 Telecomm and Wireless
Communications VN01 Exam
Questions & Answers 2026-2027 |
Latest Verified Exam (Rationales)
Verified Answers Exam Ready With Rationales
75 QUESTIONS
DOCUMENT OVERVIEW
This document provides 75 verified exam questions with correct answers and detailed rationales focused on
telecommunication and wireless communications. It serves as a comprehensive resource for understanding
key concepts in the field. Students can utilize it for effective study, thorough review, and targeted
certification preparation.
CONTENTS
01 Multiplexing Techniques Q1–Q15
02 Networking Devices Q16–Q23
03 Cable Types Q24–Q37
04 Wireless Standards Q38–Q53
05 ISO Standards Q54–Q59
06 Network Protocols Q60–Q63
07 Cabling Techniques Q64–Q70
08 Security Protocols Q71–Q75
Page 1
, E XA M Q U EST I O N S
Q1 QUESTION 1 OF 75
Frequency Division Multiplexing (FDM)
CORRECT ANSWER
Divides the available bandwidth into frequency bands, and each band is used for a different communication channel.
RATIONALE
Frequency Division Multiplexing allocates distinct frequency bands within the total bandwidth to enable simultaneous transmission of multiple
signals, maximizing channel capacity and minimizing interference among channels. This technique is foundational in telecommunications,
allowing for efficient utilization of available spectrum.
Q2 QUESTION 2 OF 75
Frequency Division Multiplexing (FDM)
CORRECT ANSWER
Multiplexing used for television network to broadcast local news content using analog signals.
RATIONALE
Frequency Division Multiplexing (FDM) allocates distinct frequency bands to multiple signals, allowing simultaneous transmission over a single
medium, which is crucial for efficiently broadcasting local news content in analog television networks without interference. This technique
maximizes bandwidth utilization by separating channels within the frequency spectrum.
Q3 QUESTION 3 OF 75
Wavelength Division Multiplexing (WDM)
CORRECT ANSWER
Optical multiplexing using different light wavelengths for channels.
RATIONALE
Optical multiplexing leverages multiple wavelengths of light to transmit different data streams simultaneously over a single optical fiber,
maximizing bandwidth efficiency and increasing the capacity of communication systems. This technique is fundamental in modern
telecommunications, allowing for the simultaneous transmission of diverse signals without interference.
Q4 QUESTION 4 OF 75
Page 2
, Wavelength Division Multiplexing (WDM)
CORRECT ANSWER
Multiplexing used commonly in telecommunication systems and computer networks that use laser systems to send light signals over
fiber optic cables.
RATIONALE
Wavelength Division Multiplexing (WDM) enables multiple light signals to be transmitted simultaneously over a single fiber optic cable by
utilizing different wavelengths, thereby increasing bandwidth efficiency and optimizing telecommunication and networking capabilities. This
technique is fundamental in modern broadband systems, allowing for high data transfer rates and improved capacity.
Q5 QUESTION 5 OF 75
Time-division multiplexing (TDM)
CORRECT ANSWER
Used to send and receive digital signals between connected devices
RATIONALE
Time-division multiplexing (TDM) allocates time slots to multiple digital signals over a single communication channel, enabling efficient
utilization of bandwidth while maintaining clear separation of data streams. This technique is essential for maximizing data transmission
efficiency in digital communication systems.
Q6 QUESTION 6 OF 75
Time-division multiplexing (TDM)
CORRECT ANSWER
Each user periodically gets the entire bandwidth for a small burst of time, i.e. entire channel is dedicated to one user but only for a short
period of time.
RATIONALE
Time-division multiplexing allocates the entire bandwidth of a channel to individual users in discrete time slots, allowing for efficient sharing of
resources while maintaining the performance of each user's data transmission. This technique maximizes channel utilization by ensuring that
each user can transmit data without interference during their designated time period.
Q7 QUESTION 7 OF 75
Time-division multiplexing (TDM)
CORRECT ANSWER
It is very extensively used in computer communication and telecommunication.
Page 3
