CompTIA Network+ (N10-007) — Question 281

A network technician discovers there is no connectivity on a T1 line even though the cable connection appears to be in place. The router shows there is no active connection on the port. The issue is occurring between the demarcation point and the router port. The router cable tests fine and is terminated at the demarcation panel. Which of the following tools should be used to fix the issue?

Answer options

• A. Punchdown tool
• B. Crimper
• C. OTDR
• D. Loopback adapter

Correct answer: A

Explanation

The Punchdown tool is essential for properly terminating wires into a patch panel or block, which might be necessary if there is a connection issue at the demarcation point. The Crimper is used for creating cable ends but does not address existing terminations. The OTDR is for testing fiber optics, which is irrelevant in this context. The Loopback adapter is used for testing the functionality of the port itself, not for fixing a physical connection issue.