2.8 CQ Flashcards
Which tool is used to test a network adapter not connected to the network?
A. Punchdown tool
B. Cable tester
C. Loopback plug
D. Tone generator and probe
C. To test a network adapter without a network connection, you would use a loopback plug. This simulates a network connection. It can also be used to test a switch port. Punchdown tools are used to punch individual wires to a patch panel. Cable testers such as continuity testers test the entire length of a terminated cable. A tone generator and probe kit can also test a cable’s length, but only tests one pair of wires at a time.
Your boss is concerned with overlapping wireless networks from neighboring companies using 802.11ac. Which tool should you use to analyze the problem, and which frequency should you display for analysis?
A. Wi-Fi analyzer; 5 GHz
B. Cable certifier; 5 GHz
C. Loopback plug; 2.4 GHz
D. Wi-Fi analyzer; 2.4 GHz
A. To analyze the problem, use a Wi-Fi analyzer! Because your boss is concerned about wireless networks using 802.11ac, you would display the results for 5-GHz networks, not 2.4 GHz. Cable certifiers are used to check long-distance wired connections, for example, from a patch panel to an RJ45 jack. The loopback plug is used to simulate a network connection, which can help with identifying switch ports, and testing a PC’s network connection.
What would be required to attach RJ45 plugs to the ends of a single patch cable?
A. Tone and probe kit
B. Multimeter
C. Cable stripper
D. Crimper
D. RJ45 plugs are attached to the cable ends with a tool called a crimper. A tone generator and probe kit is used to trace hard-to-find telecommunication and data communication cables/wires. A multimeter can be used to test continuity of a patch cable. A cable stripper is used to strip a portion of the plastic jacket off the cable, exposing the individual wires.
