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AZ-104 Practice Question 79: DNS Alias Record Apex

Microsoft Azure Administrator Associate (AZ-104) · Test 8 · question 9 of 10

Virtual Networkinghard

The apex name contoso.com must resolve to an Azure Traffic Manager profile that is hosted in Azure DNS. The administrator does not want to hard-code any IP address, because the endpoints can change.

Which record should be created?

Select one answer
Show answer and explanation

Answer:

  • C. An alias record set of type A that points to the Traffic Manager profile

DNS standards do not allow a CNAME record at the zone apex. An alias record set of type A (or AAAA) can point at the Azure resource itself, here the Traffic Manager profile, and the answers follow the resource automatically, so no IP address is stored.

Option A is not permitted at the apex, because the apex must hold other records such as SOA and NS.

Option B is a text record and never resolves to an address.

Option D delegates a zone to name servers and cannot point at a Traffic Manager profile.

Reference: Azure DNS alias records overview

Practice Test 8 ›

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