Exercise: Database Systems

Questions for: Database Systems

The on-line, softcopy display a customer's charge account to respond to an inquiry is an examples of a
A:
forecasting report
B:
exception report
C:
regularly scheduled report
D:
on demand report
Answer: D
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An indexing operation
A:
sorts a file using a single key
B:
sorts file using two keys
C:
establishes an index for a file
D:
both (b) and (c)
Answer: C
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A race condition occurs when
A:
Two concurrent activities interact to cause a processing error
B:
two users of the DBMS are interacting with different files at the same time
C:
both (a) and (b)
D:
All of the above
Answer: A
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An audit trail
A:
is used to make back-up copies
B:
is the recorded history of operations performed on a file
C:
can be used to restore lost information
D:
All of the above
Answer: B
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A database management system might consist of application programs and a software package called
A:
FORTRAN
B:
AUTOFLOW
C:
BPL
D:
TOTAL
Answer: C
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