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A relational database system needs to maintain data about the relations, such as the schema of the relations. This is called(a) Metadata(b) Catalog(c) Log(d) DictionaryI had been asked this question in unit test.This interesting question is from Data-Dictionary Storage in division Storage and File Structures of Database Management

Answer»

Right choice is (a) Metadata

Easiest EXPLANATION - Each SIDE of a platter of a DISK has a read–write head that MOVES ACROSS the platter to access different tracks.



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