well, if you want to drive then yes.
Yes, in fact you have to have two separate licenses, one for four-wheel vehicles and two-wheel vehicles and you must take a test at the local DMV to obtain both. Not many people who drive a car can...
Some companies will require it, some may not. Check with your administrator to find out what their policy is regarding your driving history.
Apply for one.
You may need two forms of identification, your drivers license being one of them. Check with your insurance agent.
You must have either a Provisional or Full Licence prior to your application to the Police Force.