220-1202: CompTIA A+ Core 2 (V15) Certification ExamDemo

By CompTIA · Question Mode

QuestionQ17

Software Troubleshooting

A technician cannot join a computer to the Windows domain. However, the computer can ping the domain controller using its IP address. Which of the following is the most likely cause?

  • A The DNS settings are incorrect
  • B The firewall configuration is wrong
  • C IPv6 is enabled on the computer
  • D The computer is not connected to the network
Explanation

Active Directory domain joining depends on DNS name resolution and DNS service records to locate a domain controller. Connectivity by IP address alone can work while incorrect DNS settings prevent domain discovery and joining.

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