Question

When performing a look-up operation using a form ___________________.

• A. you enter the search value into the form
• B. you look at each form sequentially until you see the one you want
• C. you type the key in an entry line, and the correct form is displayed
• D. none of the above

Answer 1

The correct option is A you enter the search value into the form

When performing a lookup operation using a form you enter the search value into the form.

A lookuptable is an array that replaces runtime computation with a simpler array indexing operation. The savings in terms of processing time can be significant, since retrieving a value from memory is often faster than undergoing an "expensive" computation or input/output operation.