Assuming that OSPF has been enabled on all routers in the following figure, which router is the BDR on this network?
Assuming that OSPF has been enabled on all routers in the following figure, which router is the BDR on this network?
In OSPF, the election process for the Designated Router (DR) and the Backup Designated Router (BDR) takes priority values into account first. In this scenario, both Router A and Router B have the highest priority (255). When there is a tie in priority, the router with the highest Router ID is selected as the DR. Since Router B (10.0.2.2) has a higher Router ID than Router A (10.0.1.1), Router B is selected as the DR. Consequently, Router A, having the second highest priority and Router ID among the remaining routers, will be selected as the BDR. Therefore, Router A is the BDR.
The answer is A. Router A Bacaus selected DR Router first will compare the priority but if same priority will compare the router id
C will not be BDR or DR. correct answer is A
highest priority then larger router ID is the DR. BDR is second, so A
1) compare priority, the higher priority will be elected as the DR. 2) If there is a tie, compare interface, the highest will be DR. In this case Router A and B, have the highest priority. Then comparing interfaces, Router B will be the DR and Router A the BDR. https://support.huawei.com/enterprise/en/doc/EDOC1000178171/50e7f6e0/example-for-configuring-ospf-dr-election
The election process for a Designated Router (DR) in OSPF involves several factors and follows a specific order: Each OSPF router has a configurable priority value (default: 1). The router with the highest priority is elected as the DR. If multiple routers have the same priority, the tiebreaker is the lowest Router ID.compared to other data link layer protocols like Ethernet. Router A is the DR. Router B is the BDR. The answer is B.
The answer is B because In an OSPF network, the BDR (Backup Designated Router) is responsible for maintaining a backup role in case the DR (Designated Router) fails. The DR and BDR are elected on each multi-access network (such as Ethernet) to efficiently synchronize the LSDB (Link-State Database). Here’s how the election works: Router A is the DR (Designated Router). Router B is the BDR (Backup Designated Router). Router C and Router D are DROTHERs (routers that are neither DR nor BDR). Therefore, the answer to your question is B. Router B
Respuest A
Answer is A
NaCin's explanation is correct. https://support.huawei.com/enterprise/en/doc/EDOC1000178171/50e7f6e0/example-for-configuring-ospf-dr-election
Answer is A
The BDR (Backup Designated Router) is then elected based on the second highest OSPF priority or second highest Router ID if there is a tie in OSPF priority among remaining routers after DR election. So in this case, after Router A is elected as the DR, Router B would be elected as the BDR because it has the second highest OSPF priority and second highest Router ID among remaining routers.
So the correct answer will be B. Because as you said the BDR in this case will be Router B