Which medium do service providers use to transmit data over WAN connections with SONET, SDH, and DWDM?

IT Questions BankCategory: CCNAWhich medium do service providers use to transmit data over WAN connections with SONET, SDH, and DWDM?

Which medium do service providers use to transmit data over WAN connections with SONET, SDH, and DWDM?

  • satellite
  • copper
  • fiber optic
  • Wi-Fi

Explanation: Technologies such as SONET, SDH, and DWDM are designed to run over fiber optic cables.

Exam with this question: CCNA 3 v7 Module 7 Quiz - WAN Concepts

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