A foreign country has gained entrance into your security network. All passwords must be changed.

2. A foreign country has gained entrance into your security network. All passwords must be changed. You have decided to require all new passwords to be 15 characters with upper and lower characters, 2 numbers and 2 of 30 special characters. Show how you would determine the number of possible passwords that could be used. Your boss wants you to explain your decision and your rationale.