If you specified ____ for a column when you created a table, then changing a value in a column to null is prohibited.

A. NOT NULL
B. NULL
C. CHAR
D. NUMBER


Answer: A

Computer Science & Information Technology

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The most efficient way to select the photographs for the album is to group all of the pictures in a(n) ________

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Buttons on the standard toolbar are often easier to remember than their menu counterparts because they display a picture called a(n) ____________________ that depicts the function that will be executed.

Fill in the blank(s) with the appropriate word(s).

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Depending on a user's Internet connection, the speed at which a site's contents download into his or her browser can vary.

Answer the following statement true (T) or false (F)

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Joe Technician walks into a customer's office. Betty Fixerup had been there the day before, and the computer still does not work. Joe tells the customer that Betty didn't go to the same school that he went to and didn't get much hands-on training, but that he would get things fixed. This attitude is an example of being reactive

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Computer Science & Information Technology