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Chapter 1: IntroductionAfter initial download, <strong>Websense</strong> software downloads changes to the MasterDatabase according to the schedule you establish (see Filtering and the<strong>Websense</strong> Master Database in the <strong>Websense</strong> Manager Help system).NoteAfter you download the Master Database or updates to theMaster Database, CPU usage can be 90% or more for 1-3minutes while the database is loaded into local memory.It is a good idea to schedule the download for off-peaktimes.20 <strong>Websense</strong>, Inc.