WGU D413 TELECOMMUNICATIONS NEWLY
UPDATED COLLECTION OF EXAM
QUESTIONS AND VERIFIED ANSWERS
Question 1
What is Synchronous TDM (STDM)?
Correct Answer
A TDM variant with fixed time slots synchronized to a clock.
Question 2
Synchronous Time Division Multiplexing
Correct Answer
Which multiplexing technique transmits each signal from one input source via a
single time slot through the creation of different slots?
Question 3
Category 5e UTP or STP
Correct Answer
UTP or STP
Question 4
Category 5e Maximum Frequency Rating?
Correct Answer
100 MHz
Page 1 of 151
,Question 5
What is Manchester encoding?
Correct Answer
A common digital-encoding scheme used on LANs, characterized by the digital
pulse transitioning during the midpoint of the timing period.
Question 6
frequency hopping and direct sequencing
Correct Answer
The two types of spread-spectrum transmission techniques are:
spatial multiplexing
Transmitting two or more streams of data in the same frequency channel
Question 7
What is frequency hopping?
Correct Answer
Frequency hopping is the spread spectrum technique that transmits data on
multiple channels simultaneously.
Question 8
How is wavelength defined?
Correct Answer
Wavelength is the distance from the peak of one light or sound wave to the peak of
the next.
Question 9
What is the maximum data rate and frequencies of IEEE 802.11n wireless networks?
Correct Answer
300 Mbps to 600 Mbps at 5 GHz and 2.4 GHz.
Page 2 of 151
,Question 10
Fiber-optic cable has the following advantages
Correct Answer
Provides for data security, immune to electromagnetic interference, lightweight and
small in diameter, safe from fire and explosion, wide bandwidth, corrosion-and
water-resistant, supports data transmission over longer distances than copper-core
cable.
Question 11
Which cable realizes noise protection with the use of foil shielding?
Correct Answer
A cable transmitting signals between 15 and 20 MHz
Question 12
What do Cloud Security Standards refer to?
Correct Answer
Defined by ISO/IEC 27017, they are standards for cloud security.
Question 13
What do Smart Card Specifications follow?
Correct Answer
Defined by ISO/IEC 7816, they are specifications for smart cards.
Question 14
What do Ethernet Standards encompass?
Correct Answer
Defined by ISO/IEC 8802, they include IEEE 802.3.
Page 3 of 151
, Question 15
What are the key specifications of Cat 7a cable?
Correct Answer
Supports 10 Gbps, Maximum length of 100 meters, Operates at up to 1000 MHz
Question 16
Category 5e Data Rate
Correct Answer
100 Mbps
1000 Mbps
Question 17
orthogonal frequency-division multiplexing (OFDM)
Correct Answer
Transmission technique used with wireless devices that use the 5-GHz radio band
and can achieve a data rate as high as 54 Mbps.
Question 18
What are the key specifications of Cat 7 cable?
Correct Answer
Supports 10 Gbps, Maximum length of 100 meters, Operates at up to 600 MHz
Question 19
What are the key specifications of Cat 6 cable?
Correct Answer
Supports 1 Gbps, Maximum length of 100 meters, Operates at up to 250 MHz
Page 4 of 151
UPDATED COLLECTION OF EXAM
QUESTIONS AND VERIFIED ANSWERS
Question 1
What is Synchronous TDM (STDM)?
Correct Answer
A TDM variant with fixed time slots synchronized to a clock.
Question 2
Synchronous Time Division Multiplexing
Correct Answer
Which multiplexing technique transmits each signal from one input source via a
single time slot through the creation of different slots?
Question 3
Category 5e UTP or STP
Correct Answer
UTP or STP
Question 4
Category 5e Maximum Frequency Rating?
Correct Answer
100 MHz
Page 1 of 151
,Question 5
What is Manchester encoding?
Correct Answer
A common digital-encoding scheme used on LANs, characterized by the digital
pulse transitioning during the midpoint of the timing period.
Question 6
frequency hopping and direct sequencing
Correct Answer
The two types of spread-spectrum transmission techniques are:
spatial multiplexing
Transmitting two or more streams of data in the same frequency channel
Question 7
What is frequency hopping?
Correct Answer
Frequency hopping is the spread spectrum technique that transmits data on
multiple channels simultaneously.
Question 8
How is wavelength defined?
Correct Answer
Wavelength is the distance from the peak of one light or sound wave to the peak of
the next.
Question 9
What is the maximum data rate and frequencies of IEEE 802.11n wireless networks?
Correct Answer
300 Mbps to 600 Mbps at 5 GHz and 2.4 GHz.
Page 2 of 151
,Question 10
Fiber-optic cable has the following advantages
Correct Answer
Provides for data security, immune to electromagnetic interference, lightweight and
small in diameter, safe from fire and explosion, wide bandwidth, corrosion-and
water-resistant, supports data transmission over longer distances than copper-core
cable.
Question 11
Which cable realizes noise protection with the use of foil shielding?
Correct Answer
A cable transmitting signals between 15 and 20 MHz
Question 12
What do Cloud Security Standards refer to?
Correct Answer
Defined by ISO/IEC 27017, they are standards for cloud security.
Question 13
What do Smart Card Specifications follow?
Correct Answer
Defined by ISO/IEC 7816, they are specifications for smart cards.
Question 14
What do Ethernet Standards encompass?
Correct Answer
Defined by ISO/IEC 8802, they include IEEE 802.3.
Page 3 of 151
, Question 15
What are the key specifications of Cat 7a cable?
Correct Answer
Supports 10 Gbps, Maximum length of 100 meters, Operates at up to 1000 MHz
Question 16
Category 5e Data Rate
Correct Answer
100 Mbps
1000 Mbps
Question 17
orthogonal frequency-division multiplexing (OFDM)
Correct Answer
Transmission technique used with wireless devices that use the 5-GHz radio band
and can achieve a data rate as high as 54 Mbps.
Question 18
What are the key specifications of Cat 7 cable?
Correct Answer
Supports 10 Gbps, Maximum length of 100 meters, Operates at up to 600 MHz
Question 19
What are the key specifications of Cat 6 cable?
Correct Answer
Supports 1 Gbps, Maximum length of 100 meters, Operates at up to 250 MHz
Page 4 of 151
