CompTIA Network+ (N10-007) — Question 624

A network technician is troubleshooting a DOCSIS network. Which of the following devices marks the termination of the ISP's network and the start of the customer's network?

Answer options

• A. Router
• B. Hub
• C. Modem
• D. Switch

Correct answer: C

Explanation

The correct answer is C, the Modem, as it converts the signals from the ISP into a format usable by the customer's network. The Router, Hub, and Switch are networking devices that manage traffic within the customer's network but do not serve as the boundary between the ISP's and the customer's networks.