Question

What is the purpose of the SOA (Start of Authority) record in a DNS zone?

1) To provide authoritative information about a DNS zone
2) To specify the primary name server for the domain
3) To provide the email of the domain administrator
4) All of the above

Answer 1

The SOA record in a DNS zone serves multiple purposes, including providing authoritative information, specifying the primary name server, and providing the email of the domain administrator.

Step-by-step explanation:

The purpose of the SOA (Start of Authority) record in a DNS zone is to provide authoritative information about the DNS zone, specify the primary name server for the domain, and provide the email of the domain administrator. In other words, it contains important information about the domain and its management.

For example, it includes details such as the serial number, which is used to track changes made to the zone. It also includes information about how often secondary name servers should check for updates and how long the zone data should be cached.

Therefore, the correct answer to the question is option 4) All of the above, as all the statements listed in options 1, 2, and 3 are true.