It is appropriate to use a sequential file structure when
A. records are routinely inserted.
B. single records need to be retrieved.
C. records need to be scanned using secondary keys.
D. a large portion of the file will be processed in one operation.
Answer: D
Computer Science & Information Technology
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Your colleague has not used Visual Basic in a while and so when he encounters a decision point, he sometimes calls out to you over the cubicle wall to get answers to his questions. After a few minutes, he calls back out. This time, he wants to know how to pass a reference to a value instead of passing the value itself. You suggest which of the following to him?
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Computer Science & Information Technology