Preventing multiple applications from obtaining copies of the same record when the record is about to be changed is called . block factoring resource locking concurrent processing serialized reading lost updating

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Which of the following best describe how the depth-limited search works. a normal depth-first search is performed but the number of ply/depths is limited. a normal breadth-first search is performed but the number of ply/depths is limited. a normal breadth-first search is performed but values above a specific value will be ignored. a normal depth-first search is performed but values above a specific value will be ignored.

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