Microsoft Azure Administrator — Question 20

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

Correct answer: A

Explanation

The correct answer is A because creating an NS record allows the delegation of a subdomain to another DNS server, which is necessary for research.adatum.com. Options B and D are incorrect as PTR and A records serve different purposes and do not facilitate delegation. Option C is also incorrect because modifying the SOA record does not relate to delegating a subdomain.