Database Systems - Section 6 Multiple Questions and Answers.




31.A _____ database does not use pointers or physical links, but instead finds related records by examining the contents of fields.
A. Network
B. Hierarchical
C. Relational
D. Object-Oriented

32.Which of the following is a serious problem of file management systems?
A. difficult to update
B. lack of data independence
C. data redundancy
D. All of the above

33.With respect to data input, the most accurate description of batch control is
A. dividing documents to be entered into batches
B. controlling the input of each input clerk
C. comparing to a pre-calculated figure the total of a data item summed across a batch records put into the system
D. All of the above

34.The model for a _____ resembles the hierarchical model in many respects.
A. Network database
B. Relational database
C. Distributed database
D. Hierarchical database

35.In any hierarchy of data organization, the smallest entity to be processed as a single unit is called
A. data field
B. data record
C. data file
D. database

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