Lashonda sets up a DNS server, SERVER1, with a forward lookup zone called domainA.com. It hosts the resource records for the domainX.com Active Directory domain. It contains host (A) records for two network interfaces on SERVER1 (172.16.0.10 and 192.168.1.50). The host records are associated with the FQDNs server1.domainA.com and domainA.com. There is also an SOA record and an NS record for the zone. Which of the following records identifies SERVER1 as an authoritative DNS server?
A) The SOA record
B) The NS record
C) The A record for 172.16.0.10
D) The A record for 192.168.1.50

Question

Quizplus · Accepted Answer

The NS record identifies SERVER1 as an authoritative DNS server for the domainA.com forward lookup zone. The SOA record identifies the start of authority for the zone, but does not necessarily indicate the authoritative DNS server. The A records are host records and do not provide information about the authoritative DNS server.

Lashonda Sets Up a DNS Server, SERVER1, with a Forward