_____ is a three-digit number above the signature panel on the back of a credit card.
a. Personal identification number
b. Card verification value
c. Automated teller machine
d. Know your customer digits
b. Card verification value
Card verification value is a three-digit number above the signature panel on the back of a credit card. This technique makes it impossible to make purchases with a credit card number stolen online.
Computer Science & Information Technology
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Although multiple applications can be open at the same time, only ____ application(s) can be active.
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Computer Science & Information Technology