Practice Test GeeksCompTIA Practice Test
← All COMPTIA Flashcard Decks

Network+ Troubleshooting Tools and Methods Flashcards

7 cards from real COMPTIA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 Network+ Troubleshooting Tools and Methods flashcards as text

  1. A technician uses Wireshark and notices a host is sending ARP requests for every IP on the subnet in rapid succession. What does this most likely indicate?

    Answer: ARP poisoning or network scanning activity

    Rapid ARP requests across an entire subnet are a hallmark of ARP scanning or ARP poisoning attacks.

  2. Which command-line tool displays the route a packet takes to reach a destination and reports latency at each hop on a Windows system?

    Answer: pathping

    Pathping combines tracert and ping to show per-hop latency and packet loss statistics.

  3. A network cable tester shows a 'crossed pair' fault on pairs 2 and 3. What is the most likely cause?

    Answer: A wiring error swapped the transmit and receive pairs

    A crossed pair fault means the Tx and Rx wire pairs were transposed during termination.

  4. You run 'netstat -an' and see multiple connections in the TIME_WAIT state to port 80. What does this indicate?

    Answer: Recently closed HTTP connections awaiting full TCP teardown

    TIME_WAIT is a normal TCP state where a connection waits to ensure the remote end received the final ACK before fully closing.

  5. A technician suspects duplex mismatch between a switch port and a NIC. Which tool would BEST confirm this without physical access to the switch?

    Answer: Protocol analyzer capturing Ethernet errors

    A protocol analyzer can reveal excessive late collisions and FCS errors that are characteristic of a duplex mismatch.

  6. What does the '-t' flag do when appended to the Windows 'ping' command?

    Answer: Sends pings continuously until stopped with Ctrl+C

    The -t flag makes ping send ICMP echo requests indefinitely, useful for monitoring link stability over time.

  7. A fiber link shows high light loss measured by an OTDR. The OTDR trace shows a sharp spike at 150 meters. What does this spike most likely represent?

    Answer: A fiber break or severe bend

    A sharp reflective event at a specific distance on an OTDR trace indicates a physical break, splice fault, or severe bend in the fiber.