220-801 · Question #997
A technician is told that a networked computer will PING the loopback address, but cannot connect to the Internet, nor connect to any file shares. The same computer, when plugged into the network at…
The correct answer is B. Cable tester. The loopback ping (127.0.0.1) succeeding confirms the TCP/IP stack is functional. The computer working fine at another location rules out a software or NIC issue. The problem is therefore physical and location-specific - most likely a bad patch cable or wall port at that…
Question
A technician is told that a networked computer will PING the loopback address, but cannot connect to the Internet, nor connect to any file shares. The same computer, when plugged into the network at a different location, works fine. Which of the following tools should the technician use to help determine the cause of the problem?
Options
- AToner probe
- BCable tester
- CMultimeter
- DCrimper
How the community answered
(42 responses)- A2% (1)
- B76% (32)
- C7% (3)
- D14% (6)
Explanation
The loopback ping (127.0.0.1) succeeding confirms the TCP/IP stack is functional. The computer working fine at another location rules out a software or NIC issue. The problem is therefore physical and location-specific - most likely a bad patch cable or wall port at that specific drop. A cable tester checks for wiring faults such as opens, shorts, or miswires. A toner probe traces cable paths but does not test continuity, a multimeter is for electrical measurements, and a crimper is for making cables.
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