Which of the following files is often being referred to as the “cache file” on Linux?

A.
named.ca

B.
name.cache

C.
cache.d

D.
cached

E.
None of the above.

Explanation:
Named is the Internet domain name server. See RFC’s 1033, 1034, and 1035 for more
information on the Internet name-domain system. Without any arguments, named will
read the default boot file /etc/named.boot, read any initial data and listen for queries.
Named.ca is the file that contains cached name resolution data.