Which of the following are required for two OSPF routers to become neighbors? (Choose two.)

For OSPF routers to establish a neighbor relationship, several parameters must match. Identical hello and dead timers are crucial because they dictate the frequency of hello packet exchanges and how long a router waits for a hello packet before declaring a neighbor down. Mismatched timers prevent neighbor formation as routers will not agree on the timing for keeping the adjacency alive. Matching MTUs (Maximum Transmission Units) on the connecting links are also essential. If MTUs differ, OSPF packets larger than the smallest MTU will be fragmented or dropped, leading to issues with Database Description (DBD) packet exchange and preventing full adjacency. While OSPF routers must be on the same subnet to become neighbors (the option "Need not be on the same subnet" is incorrect), the Autonomous System Number (ASN) is not an OSPF concept; it's used by BGP, making "Must use the same ASN" irrelevant to OSPF neighbor formation.