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AZ-802 · Networking · Networking | Implement on-premises and hybrid name resolution

Practice question 180 of 506 · medium

A Windows DNS server is authoritative for contoso.com but has no record for missing.contoso.com. It returns NXDOMAIN even though a general forwarder is configured. Why?

Choose the single best answer.

  1. A.Adding a CNAME for the DNS server itself enables fallback for all missing names
  2. B.A configured forwarder always overrides locally hosted authority
  3. C.Every NXDOMAIN is a timeout that must trigger root hints
  4. D.The hosted authoritative zone supplies a terminal negative answer
Show the answer and explanation

✓ Correct answer

  • The hosted authoritative zone supplies a terminal negative answer

Local authority determines the result for its namespace, and NXDOMAIN is terminal. It is not the same as a timeout. A general forwarder does not override hosted authority, and a DNS-server alias does not change the query-resolution precedence.

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