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4.112 AWired Equivalent Privacy (WEP) key is a securitv code that one must enter in order to access a secure WiFi network. The charac- ters in the key are used from the numbers 0 to 9 and letters from A to HF which gives possibilities for each character of the key. Note that repeats are allowed, that is, the same letter or number can be used more than once in a key. A WEP key for a WiFi network with 64-bit security is 10 characters long. (you do not need to simplify your answers as the values are too large for most calculators) a. How many different 64-bit WEP keys can be made by using the given numbers and letters? b. A specific 64-bit network has a WEP key in which the 2nd, 5th, 8th, and 9th characters are numbers and the other 6 char- acters are letters. How many different WEP kevs are possible for this network