Which statement about OSPF external route types is false?

The statement regarding the preference of Type 2 external routes over Type 1 is incorrect because in the OSPF (Open Shortest Path First) routing protocol, the preference between these two types of external routes is not fixed. OSPF prioritizes routing decisions based on the cost of the routes, where Type 1 (E1) routes calculate their cost as the sum of the external cost and the internal OSPF metrics, making them more flexible in multi-area scenarios within the Autonomous System (AS). In contrast, Type 2 (E2) routes only consider the external cost and do not add internal OSPF metrics to their cost.

This means that in a situation where both Type 1 and Type 2 routes are available, the OSPF process may prefer Type 1 routes depending on specific network configurations and metrics, rather than always choosing Type 2. Thus, stating that Type 2 is always preferred over Type 1 does not align with how OSPF operates, as the actual route preference will depend on the overall calculated costs and network conditions.