Microsoft Azure Administrator Certification Transition (legacy) — Question 1

You have an Azure DNS zone named adatum.com.
You need to delegate a subdomain named research.adatum.com to a different DNS server in Azure.
What should you do?

Answer options

• A. Create an A record named *.research in the adatum.com zone.
• B. Modify the SOA record of adatum.com.
• C. Create an PTR record named research in the adatum.com zone.
• D. Create an NS record named research in the adatum.com zone.

Correct answer: A

Explanation

The correct answer is A because creating an A record for *.research directs traffic to the designated DNS server for that subdomain. The other options are incorrect as modifying the SOA record does not delegate subdomains, PTR records are used for reverse lookups, and NS records should be used for delegating but are incorrectly specified in option D.