Which characteristic describes an OSPF type 2 external route?
- It is preferred over type 1 external routes.
- It is the default external route type used by OSPF.
- It has a default seed metric of 20 for routes redistributed from BGP.
- It has a metric that equals the redistribution metric plus the total path metric.
Explanation: There are two types of OSPF external routes, type 1 and type 2. Type 2 is the default setting if not otherwise specified in the redistribute command. The metric for type 1 routes equals the redistribution metric plus the total path metric. For type 2 routes the metric stays the same as the redistribution metric throughout the OSPF domain. The seed metric for BGP-sourced routes redistributed into OSPF is 1.