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MCQs DBMS|UGC-NET|GATE|Computer Science

81.A data dictionary does not provide information about
A.Where data is located
B.who owns it
C.size of disk storage device
D.How the data is used
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82.Data item characteristics that are important in data management include
A.Width
B.language
C.spelling
D.all of above
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83.A schema describes
A.Record & files
B.data elements
C.record relationships
D.all of the above
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84.Data security threat include
A.Privacy invasion
B.hardware failure
C.Fraudulent manipulation of data
D.all of above
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85.Which language is used by most of dbms’s for helping their users to access data?
A.4GL
B.SQL
C.Query languages
D.HLL
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86.Which of the following is at highest level in the hierarchy of data organization?
A.Data Record
B.data File
C.Database
D.Data Bank
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87.The logical data structure with one to many relationship is a
A.Network
B.Tree
C.Chain
D.All of above
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88.An entry in a telephone book can be compared to a
A.Database
B.File
C.Record
D.Field
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Author Does Not claim of any answer these answers are as per expert opinion


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