jonesj9516 jonesj9516

18-05-2023
Computers and Technology

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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)

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