Which DNS configuration uses separate internal and external views?

• A. Split DNS
• B. Secondary DNS
• C. Recursive DNS
• D. Forwarding DNS

Answer: (A)

Split DNS is about providing two separate DNS views for different clients. In practice, you run a DNS setup that serves internal records to users and devices inside the network, while presenting a different (often restricted or public) set of records to users on the Internet. This lets internal clients resolve internal hostnames to internal IP addresses, while external clients see only the publicly exposed resources, helping to shield internal topology and enforce access policies.

The other options don’t create these distinct views. A secondary DNS is just a replica server for redundancy and load distribution, not a way to separate internal from external data. Recursive DNS refers to a resolver that looks up names by querying other servers, not about exposing different data to different audiences. Forwarding DNS simply passes queries to another server and doesn’t establish separate internal and external views.