Practice Quiz

CompTIA Network+

Category - Concepts

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Which of the following is WAN equipment that you would find in a network that uses leased lines to connect offices?
  1. CSU/DSU
  2. WAP
  3. Hybrid hubs
  4. Brouters
Explanation
Answer: A - CSU/DSU(Channel Service Unit/Data Service Unit) is used to connect a network to a leased line.

Key Takeaway: CSU/DSU is a digital-interface device used to connect a Data Terminal Equipment device (DTE), such as a router, to a digital circuit. It operates at the physical layer of the OSI model. It provides termination for a digital signal and ensures connection integrity through error correction and line monitoring.
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