Practice Quiz

CompTIA Network+

Category - Install & Configure

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When troubleshooting an error in Mike’s network, you observe that the IP address of his PC changed after the PC was restarted. What is your inference from this?
  1. Mike’s computer has a DHCP-based IP address.
  2. The DNS server is offline.
  3. The DHCP server is offline.
  4. The Ethernet cable is a faulty.
Explanation
Answer: A -The most likely cause of an IP address change after a reboot is that the computer is using DHCP.

Key Takeaway: Generally (though not always), if a computer uses DHCP, the computer obtains a different IP address soon after the computer boots up. If the IP address changes when the PC is booted, then the computer is configured with a DHCP-based address.
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