Database Systems – Section 2

46. The way a particular application views the data from the database that the application uses is a :

A. module
B. relational model
C. schema
D. subschema
E. None of the above

Correct Answer: D. subschema

47. A compound key

A. is made up a several pieces of information
B. uniquely identifies an item in a list
C. both (a) and (b)
D. is a combination of each unique key
E. None of the above

Correct Answer: C. both (a) and (b)

48. The distinguishable parts of a record are called

A. files
B. data
C. fields
D. database
E. None of the above

Correct Answer: C. fields

49. Large collections of files are called

A. fields
B. records
C. databases
D. file system
E. None of the above

Correct Answer: C. databases

50. The index consists of

A. a list of keys
B. pointers to the master list
C. both (a) and (b)
D. All of the above
E. None of the above

Correct Answer: C. both (a) and (b)

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