You can use a caching-only server when you want to improve name resolution for a branch
office that has little technical expertise on its local staff. For example, if the headquarters
for Contoso.com is in New York and a branch office is in Albany, you might not want to host
a copy of the Contoso.com zone at the Albany office because managing that zone would
require too much technical expertise. However, a caching-only server, which requires no
technical expertise to maintain, would allow users in the Albany office to channel their DNS
queries through a single server and create a large pool of cached queries. Repeated queries
could then be resolved from the local server cache instead of through queries across the
Internet, thereby improving response times.

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