What is the default OSPF interface priority on all interfaces?

What is the default OSPF interface priority on all interfaces?

• A. 0
• B. 1
• C. 10
• D. 100

Answer: (B)

The default OSPF interface priority on all interfaces is 1. This value determines the likelihood of an interface becoming the designated router (DR) in a multi-access network segment. OSPF uses this priority value during the election process for DR and backup designated router (BDR). By default, all interfaces are assigned a priority of 1, meaning that all interfaces have an equal chance of becoming the DR and BDR unless configured otherwise. When multiple interfaces are present on a network segment, if the priority values were all set to 1, OSPF would fall back to using the router IDs to decide the DR. A higher priority number increases the chances that an interface will be elected as DR, while a priority of 0 would prevent an interface from becoming DR altogether. This understanding is fundamental when configuring OSPF to ensure optimal routing performance in a network.

The default OSPF interface priority on all interfaces is 1. This value determines the likelihood of an interface becoming the designated router (DR) in a multi-access network segment. OSPF uses this priority value during the election process for DR and backup designated router (BDR). By default, all interfaces are assigned a priority of 1, meaning that all interfaces have an equal chance of becoming the DR and BDR unless configured otherwise.

When multiple interfaces are present on a network segment, if the priority values were all set to 1, OSPF would fall back to using the router IDs to decide the DR. A higher priority number increases the chances that an interface will be elected as DR, while a priority of 0 would prevent an interface from becoming DR altogether. This understanding is fundamental when configuring OSPF to ensure optimal routing performance in a network.