Which type of DNS server has no authority of its own, but processes queries by asking other
services for information?

A.
Root

B.
Primary

C.
Caching

D.
Forwarding

Explanation:
A caching server has no static database. When a request is received, the caching DNS server
queries other DNS servers to resolve any request that can’t be resolved in its own cache. When a
caching DNS server is started, its cache is empty.
Incorrect Answers:
A: These types of servers have their own authority (designated by SOA records) and zones. The
zones are static databases which those servers startup with.
B: These types of servers have their own authority (designated by SOA records) and zones. The
zones are static databases which those servers startup with.
D: These types of servers have their own authority (designated by SOA records) and zones. The
zones are static databases which those servers startup with.