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backup domain controller

backup domain controller in Technology

networking
(BDC) A server in a network of Microsoft Windows computers that maintains a copy of the SAM database and handles access requests that the Primary Domain Controller (PDC) doesn't respond to. There may be zero or more BDCs in a network. They increase reliability and reduce load on the PDC.
(2006-09-18)

The Free On-line Dictionary of Computing, © Denis Howe 2010 http://foldoc.org
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