Multiple Choice
Which of the following Layer 1 WAN technologies is not normally used as last mile service, but rather traverses multiple ISP networks, connecting these networks to the Internet backbone?
A) SONET (Synchronous Optical Network)
B) T-carrier (T1s, fractional T1s, and T3s)
C) Carrier-Ethernet Transport (CET)
D) digital subscriber line (DSL)
Correct Answer:
Verified
Correct Answer:
Verified
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