Which of the following statements regarding the election of the designated router (DR) by OSPF routers are true? (Choose two)

The OSPF Designated Router (DR) election process on a multi-access network segment follows a specific set of rules. First, all eligible routers (those with an interface priority greater than 0) are considered. The router with the highest OSPF interface priority is elected as the DR. If two or more routers share the same highest priority value, a tie-breaker mechanism is used. In this case, the router with the highest Router ID (RID) among the tied routers is chosen as the DR.

A. The router with the lowest priority is the DR. This is incorrect. The lowest priority makes a router less likely to be elected; a priority of 0 makes it ineligible.
C. If priorities are the same, the DR is chosen based on the lowest RID. This is incorrect. The tie-breaker is the highest Router ID, not the lowest.

1. Nokia 7750 SR OS Router Configuration Guide, Release 21.10.R1, "OSPF Designated Router" section: "The router with the highest priority value is elected the DR. If all routers on the segment have the same priority, the router with the highest router ID is elected." (Document ID: 3HE 17179 AAAA TQZZA, Page 398)

2. RFC 2328 - OSPF Version 2, Section 9.4, "Electing the Designated Router": "The Designated Router is elected from the set of routers that are in state 2-Way or greater... The list is ordered by Router Priority, with the highest priority routers appearing first. If two routers have the same Router Priority, their order is based on their Router ID (larger Router IDs are better)."

3. Computer Networking: A Top-Down Approach, 8th Edition, by J. Kurose and K. Ross, Section 5.3.2, "The OSPF Protocol": "On a multi-access network, OSPF elects a designated router (DR)... The DR is the router with the highest priority. In case of a tie, the router with the highest router ID is chosen." (This is a widely used university textbook, reflecting standard academic curriculum).