Exercise: Database Systems

Questions for: Database Systems

Which of the following hardware components is the most important to the operation of a database management system?
A:
high-resolution video display
B:
printer
C:
high speed, large-capacity disk
D:
plotter
Answer: C
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A top-to-bottom relationship among the items in a database is established by a
A:
Hierarchical schema
B:
Network schema
C:
Relational schema
D:
All of the above
Answer: A
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What is the name given to the database management system which is able to handle full text data, image data, audio and video?
A:
Full media
B:
Graphics media
C:
Multimedia
D:
Hypertext
Answer: C
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An-owner-member set in the CODASYL specifications may have
A:
only one owner but many owner occurrences
B:
only one member but many member occurrence
C:
more than one member but only one occurrence per member
D:
All of the above
Answer: A
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Which command is used to remove an index from the database in SQL?
A:
DELETE INDEX
B:
DROP INDEX
C:
REMOVE INDEX
D:
ROLL BACK INDEX
Answer: B
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