David Is Switching on the Computers on His Network for the First

Multiple Choice

David is switching on the computers on his network for the first time after a power outage. A DNS client submits a recursive query to a local DNS server to resolve an Internet name. The server for this Internet name is not authoritative. Which of the following occurs first in this case?

A) The DNS server contacts root servers configured in the cache.dns file.
B) The DNS client resolves the name from its cache.
C) The DNS server resolves the name from its cache.
D) The DNS server forwards the recursive query to an upstream DNS server.