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Question

Difficulty: MediumWindows Client Networking Configuration

A field technician is troubleshooting a Windows 11 Enterprise workstation that failed to update its Host (A) resource record on the domain DNS server after changing its static IPv4 configuration. The technician needs to manually initiate dynamic registration of the computer's name and newly assigned IPv4 address with the DNS server using the Command Prompt. Which of the following commands should the technician execute to accomplish this task?

  1. ipconfig /registerdnsAnswer
  2. B
    ipconfig /flushdns
  3. C
    netsh interface ip reset
  4. D
    nslookup -type=a

Answer

The command 'ipconfig /registerdns' forces the Windows client to re-register its host name and IPv4 address with the configured DNS server.
Executing 'ipconfig /registerdns' refreshes all DHCP leases and re-registers DNS names for the workstation. It is the specific administrative command used in Windows to force dynamic update registration with a DNS server without rebooting the system.

Step-by-Step Solution

1
Identify the troubleshooting goal
The target action is to refresh dynamic DNS registration of the client's host name and static IP address.
When static IP changes occur, Windows automatically attempts registration, but manual triggering is needed if domain DNS updates fail.
2
Select the correct ipconfig command switch
The '/registerdns' parameter initiates immediate dynamic registration of all configured IP addresses and host names.
This switch flushes the DNS cache and sends registration requests directly to the configured DNS server.

Key Concept

Windows Client Dynamic DNS Registration via ipconfig
Estimated Time:1m 0s
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Topics

Windows Client Networking Configuration

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