Router R learns two external routes to the same prefix from two different neighboring ASes. Route A has MED 50 (from AS65001), Route B has MED 100 (from AS65002). Assuming default Cisco BGP behavior and no special configuration, which statement is true?

Cisco BGP routers, by default, only compare the Multi-Exit Discriminator (MED) attribute for routes learned from the same autonomous system (AS). Since Route A and Route B originate from different neighboring ASes (AS65001 and AS65002, respectively), their MED values are not compared. The BGP path selection process will proceed to the next attribute in the decision-making sequence, typically Origin Code, then ASPath length. Therefore, Route A is not necessarily selected based on its lower MED. The statement that BGP on Cisco always compares MED across different ASes by default is incorrect; this behavior requires specific configuration (e.g., bgp always-compare-med). The route with the higher MED is never preferred; a lower MED is always preferred if MEDs are compared.