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?
A . Create an PTR record named research in the adatum.com zone.
B . Create an NS 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.
Answer: B
Explanation:
You need to create a name server (NS) record for the zone.
References: https://docs.microsoft.com/en-us/azure/dns/delegate-subdomain