200-301 Question #186: Real Exam Question with Answer & Explanation

The correct answer is B: It provides stability for the OSPF process on RouterB.. A loopback interface never comes down even if the link is broken so it provides stability for the OSPF process (for example we use that loopback interface as the router-id). The router-ID is chosen in the order below: The highest IP address assigned to a loopback (logical) interf

Submitted by viktor_hu· Mar 5, 2026IP Connectivity

Question

Refer to the exhibit. Which two statements are true about the loopback address that is configured on RouterB? (Choose two.)

Options

AIt ensures that data will be forwarded by RouterB.
BIt provides stability for the OSPF process on RouterB.
CIt specifies that the router ID for RouterB should be 10.0.0.1.
DIt decreases the metric for routes that are advertised from RouterB.
EIt indicates that RouterB should be elected the DR for the LAN.

Explanation

A loopback interface never comes down even if the link is broken so it provides stability for the OSPF process (for example we use that loopback interface as the router-id). The router-ID is chosen in the order below: The highest IP address assigned to a loopback (logical) interface. If a loopback interface is not defined, the highest IP address of all active router's physical interfaces will be chosen. -The loopback interface will be chosen as the router ID of RouterB.

Topics

#Loopback interface#OSPF#Router ID#OSPF process stability

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