Introduction to Database System
A multiple-form file management system

allow you to entry data in all the forms
None of these
lets you define different forms for different operations
lets you create a look-up form with an associated read-only password to prevent access by unauthorized users
both (a) and (b)

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Introduction to Database System
The activity of a file

is a measure of the percentage of existing records updated during a run
refers to how closely the files fits into the allocated
if high, reduces processing efficiency for sequential and nonsequential files
None of these
is a low percentages of number of records added or deleted from a file

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