Short answer, none.
No.
Not until the suspension period is over.
No, South Dakota will honor Iowa's ruling. They will not allow you to obtain a license before you could get one in the original state.
If your license is suspended in Iowa, you would not be able to obtain a license in any other state until the suspension is resolved. Each state has its own laws and regulations regarding license suspensions, so it's important to address the suspension in Iowa first before applying for a license in another state.
Yes. Otherwise your drivers license will normally be suspended and they can issue a warrant for your arrest.
Yes, if the infraction happened inside the state lines. however, they won't suspend the license themselves, but will request Ohio to suspend it.
Not, you can't, until your suspension period is up in Iowa.
Yes
You have to get your situation sorted out with the state of Iowa before you could get one in Tennessee.
Yes
The rule is that you cannot drive a vehcile on a public highway anywhere if your license is suspended by any state.
60 days