Which levels of the federal judicial system have both original and appellate jurisdiction

The level that the federal judicial system obtains is:

Level 3

The federal judicial system has three main levels namely:

-District Courts (trial courts of the federal court systems)

-Courts of Appeals (composed of 12 regional circuit courts)

-Supreme Court of the United States (highest court in the nation)

The answer is: Level 3

Level 3 of the federal judicial systems the supreme court. The original jurisdiction of the supreme court granted it with the ability to handle all cases relating to ambassadors and ministers. The appellate jurisdiction of the supreme court allow it to overrule the decisions made by the lower level courts.