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Computer Science - Database Systems

Exercise : Database Systems - Section 2
16.
A database management system might consist of application programs and a software package called
FORTRAN
AUTOFLOW
BPL
TOTAL
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
An audit trail
is used to make back-up copies
is the recorded history of operations performed on a file
can be used to restore lost information
All of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
A race condition occurs when
Two concurrent activities interact to cause a processing error
two users of the DBMS are interacting with different files at the same time
both (a) and (b)
All of the above
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
An indexing operation
sorts a file using a single key
sorts file using two keys
establishes an index for a file
both (b) and (c)
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
The on-line, softcopy display a customer's charge account to respond to an inquiry is an examples of a
forecasting report
exception report
regularly scheduled report
on demand report
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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