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Network Troubleshooting Tools Flashcards

6 cards from real CCST practice questions. Tap to flip, then mark Knew It or Still Learning โ€” missed cards come back until you master them.

Read the first 6 Network Troubleshooting Tools flashcards as text
  1. A technician runs 'ipconfig /release' followed by 'ipconfig /renew'. What is the purpose of this action?

    Answer: Release the current DHCP lease and obtain a new IP address

    ipconfig /release drops the current DHCP-assigned IP address, and /renew sends a new DHCP discovery to obtain a fresh lease.

  2. Which command flushes the local DNS resolver cache in Windows to force fresh DNS lookups?

    Answer: ipconfig /flushdns

    ipconfig /flushdns clears the Windows DNS resolver cache, forcing the system to perform new DNS queries for all hostnames.

  3. A user cannot reach a website by name but CAN ping its IP address. Which service is most likely failing?

    Answer: DNS

    If a host can be reached by IP but not by name, it indicates a DNS resolution failure rather than a connectivity problem.

  4. What does a 'Request timed out' message in a ping output typically indicate?

    Answer: The ICMP packet was blocked or the host is unreachable

    A 'Request timed out' result means no ICMP reply was received, suggesting the host is unreachable or a firewall is blocking ICMP.

  5. Which Cisco IOS command can a support technician use to verify the IP configuration on a router interface?

    Answer: show ip interface brief

    'show ip interface brief' provides a quick summary of all interfaces with their IP addresses and up/down status.

  6. A technician uses Wireshark during troubleshooting. What type of tool is Wireshark?

    Answer: Packet analyzer (sniffer)

    Wireshark is a packet analyzer (protocol analyzer/sniffer) that captures and inspects network traffic at the frame level.