WGU D413 Telecommunications & Wireless Communications Exam Testbank – Complete Q&A Study Guide ()

WGU D413 – Telecommunications &
Wireless Communications Exam Testbank
Questions And Correct Anwers Already
Graded A + 2026-2027.

Which class is Cat 6a? - ANSWER-Class Eₐ




Which class is Cat 7 / Cat 7a? - ANSWER-Class F / Class Fₐ




The OSI reference model comes from which standard? - ANSWER-ISO/IEC

7498-1




CSU/DSU - ANSWER-A device that connects end-user equipment to a digital

circuit.

,Multiplexing - ANSWER-combines multiple signals into one signal to travel

over a channel.




Advantages of multiplexing - ANSWER-Increased bandwidth efficiency,

reduced costs for transmission infrastructure, and the ability to transmit

multiple signals simultaneously without interference.




Cat5 - ANSWER-100MHz


100Mbps


100m




Cat5e - ANSWER-250MHz


1 Gbps


100m

,Cat6 - ANSWER-250MHz


1 Gbps | 10 Gbps


100m | 55m




Cat6a - ANSWER-500MHz


10 Gbps


100m




Cat7 - ANSWER-600MHz


10 Gbps+


100m




Cat8 - ANSWER-2000Mhz


25/40 Gbps


30m

, 802.3 - ANSWER-10 Mbps


Original Ethernet




802.3u - ANSWER-100 Mbps


Fast Ethernet




802.3ab - ANSWER-1 Gbps (copper)


1000BASE-T (Cat 5e)




802.3z - ANSWER-1 Gbps (fiber)


1000BASE-SX/LX




802.3ae - ANSWER-10 Gbps(fiber)


10GBASE-SR/LR