Practice Free 300-410 Exam Online Questions
Question #191
Refer to the exhibit.
Which set of commands restore reachability to loopback0?
- A . interface loopback0
ip address 4.4.4.4 255.255.255.0
ip ospf network point-to-point - B . interface loopback0
ip address 4.4.4.4 255.255.255.0
ip ospf network broadcast - C . interface loopback0
ip address 4.4.4.4 255.255.255.0
ip ospf interface area 10 - D . interface loopback0
ip address 4.4.4.4 255.255.255.0
ip ospf interface type network
Correct Answer: A
A
Explanation:
We tested this config in GNS3 (except the LAN interface) but R1 loopback0 was advertised normally on R2 and R2 could reach this loopback0.
A
Explanation:
We tested this config in GNS3 (except the LAN interface) but R1 loopback0 was advertised normally on R2 and R2 could reach this loopback0.
Note: Although the configured loopback address is 4.4.4.4/24 but by default OSPF will advertise this route to loopback0 as 4.4.4.4/32 (most specific route to that loopback). In order to override this, we have to change the network type to point-to-point. After this OSPF will advertise the address to loopback as 4.4.4.0/24.