You have an Azure DNS zone named adatum.com and need to delegate the subdomain research.adatum.com to a different DNS server in Azure. What should you create in the adatum.com zone?
Choose an answer
Tap an option to check your answer.
Correct answer: Create an NS record named research in the adatum.com zone..
Why this is the answer
To delegate a subdomain like research.adatum.com to a different DNS server, you must create a Name Server (NS) record in the parent zone (adatum.com). This NS record, named 'research', will point to the authoritative DNS servers for the research.adatum.com subdomain, effectively transferring control of that subdomain to those specified servers. Creating a PTR record (Pointer record) is used for reverse DNS lookups (IP to hostname), not for delegating subdomains. Modifying the SOA (Start of Authority) record of adatum.com would change the primary DNS server for the entire adatum.com zone, not delegate a specific subdomain. Creating an A record (Address record) named .research would create a wildcard record mapping hostnames within research.adatum.com to an IP address, but it wouldn't delegate the subdomain itself.
Pass your exam — without the endless answer hunt
Get every verified question and explanation for this exam in one place, and save hours of prep. 1,000+ certifications · 20+ languages · free to start.
Pass your exam faster → No card needed