Which of the following applies to the router ID? (Choose two)

Which of the following applies to the router ID? (Choose two)

• The router ID cannot be defined by an administrator.
• The router ID is not used to determine the BDR.
• The router ID is used to determine the DR.
• The router ID uniquely identifies the router.
• The router ID is not required.

Explanation: The answer is True. The router ID is used by the OSPF-enabled router to uniquely identify the router and for participation in the DR election. In a multiaccess LAN environment, the router with the highest router ID is elected the DR. The routing device with the second highest router ID is elected the backup designated router (BDR).

Exam with this question: 2.1.9 Check Your Understanding - OSPF Router ID