I need help in responding to 2 of my classmate's discussion answer. I have to give my opinion on what their response is to the question that was posted. Thanks

This is the question:

Describe each of the DNS zone types that are available in Windows Server 2016. Explain why you would use each type of zone. For example, when would you use a Standard Zone versus an Active Directory Integrated Zone? Make sure you include Stub Zones in your answer.

This is my classmate's response:

#1

Primary zone: The primary zone holds the only read/write copy of the zone. This means any modification to a domain on the zone must be done to the primary zone. Any updates made to the primary zone are pushed by the authoritative DNS server for that zone.

Secondary zone: The secondary zone holds a read copy of the primary zone. This is used for fault tolerance and load balancing. When a change is made to the primary zone the secondary zone is updated through a zone transfer to reflect those changes.

ADI zone: An ADI zone stores its data in Active Directory and does not use DNS zone files. These zones can only be stored on a domain controller. These zones use AD's replication service, so a second replication topology isn't required because all zone data is replicated automatically. ADI zone transfers are encrypted during these replications as well.

Stub zone: Stub zones are copies of an authoritative DNS zone and only contains the records needed to reach the authoritative server. These zones are used to resolve names between separate DNS namespaces.

ADIs are pretty much just enhanced primary zones. Directory replication is much faster when DNS and Active Directory are integrated because the only data that is replicated during updates is the data specific to the updated zone. Additionally, being able to consolidate your AD domains and DNS namespaces means that instead of having to manage each namespace separately you can view and manage them together as a single entity.

#2

In Windows Server 2016, there are Primary, Secondary, and Stub zones. Primary Zones are not copied from other zones making them original. They can be edited and updated. This is because they are the original copy. These Primary Zones can be updated by the DNS server.

Secondary zones are copies of an already created zone. This option helps balance the processing load of primary servers and provides fault tolerance.

According to Karimi (2016), "Stub zone: is providing information whatever server holds a special zone". This creates a copy of a zone containing only Name Server, Start of Authority, and possibly glue Host (A) records.