SOLUTION: A computer programmer is designing a secure encryption key for a new wireless networking protocol. The protocol picks 2 random letters A to Z to make the key. How many keys are pos

Question 663866: A computer programmer is designing a secure encryption key for a new wireless networking protocol. The protocol picks 2 random letters A to Z to make the key. How many keys are possible if the order of the letters matters and letters can repeat???
Answer by DrBeeee(684) (Show Source): You can put this solution on YOUR website!
Not sure if you want upper case only, but as stated that's what it looks like. The coder can select any of the 26 alphabetic characters for the first letter and since we can repeat the letter for the second choice , there are 26 letters to choose for it as well. This gives 26*26 possible codes. By the way, this by itself, 676 combinations, is not a very large number.
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