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单项选择题 You are designing the configuration of the external DNS server to meet the business and technical requirements.  What should you do？ （）

A、 Configure a root zone on the external DNS server.

B、 Configure a stub zone for.com on the external dns server.

C、 Configure the external DNS server to use the default root hints.

D、 Configure the External DNS server to use the ISP’S DNS server as a forwarder.

  • A

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