The ASCII character table contains 127 characters. However, 33 are non-printable so they can't be used in passwords, leaving 95 printable characters. Assume that passwords on a server must be exactly 10 characters long. a. Given these constraints, how many possible passwords can be generated? b. You have a password cracker that can crack 50 million passwords per second. How long will it take to test all possible passwords from the previous answer (a)? You must show and explain your work and calculations.