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Question
Your on-premises network hosts a DNS zone contoso.com on internal DNS servers.
You need to identify the name of the primary DNS server for the contoso.com zone.
Which type of DNS record should you query?
Select only one answer.
Proposed answer
- CNAME
- NS
- SOA
- SRV
Correct answer
SOA
- Incorrect – A CNAME record is used to assign an alias to an existing DNS name represented by an A record.
- Incorrect – An NS record identifies all DNS servers for the zone. There is one NS record for each DNS server that has a copy of the zone. Using NS record we cannot distinguish between DNS servers that host primary and secondary zones.
- Correct – An SOA record contains configuration information for the zone, including the name of the DNS server that hosts primary zone.
- Incorrect - SRV records are used by applications to identify the location of the servers hosting the application.
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