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26. 

In a _____ a parent record type can be linked to one or more "child" record types, but a child record type can have only one parent.
A. Network database
B. Relational database
C. Distributed database
D. Hierarchical database
E. None of the above
27. 

Which two files are used during operation of the DBMS?
A. query language and utilities
B. data manipulation language and query language
C. data dictionary and transaction log
D. data dictionary and query language
E. None of the above
28. 

When using a database management system, the first thing that you must do is to
A. create a database file
B. activate file editor
C. load the software into your micro¬computer
D. keep a floppy disk in readiness
E. None of the above
29. 

A network schema
A. restricts the structure to a one-to-many relationship
B. permits many-to-many relation¬ships
C. stores data in tables
D. All of the above
E. None of the above
30. 

Which of the following is not a relational database?
A. dBASE IV
B. 4th Dimension
C. FoxPro
D. Reflex
E. None of the above