Exam4Training

Which option would fix the issue?

R1 does not form an OSPF neighbor adjacency with R2.

R1# show running-config interface Loopback0  description ***Loopback***  ip address 192.168.1.1 255.255.255.255  ip ospf 1 area 0 ! interface Ethernet0/0  description **Connected to R1-LAN**  ip address 10.10.110.1 255.255.255.0  ip ospf 1 area 0 ! interface Ethernet0/1  description **Connected to L2SW**  ip address 10.10.230.1 255.255.255.0  ip ospf hello-interval 25  ip ospf 1 area 0 ! router ospf 1  log-adjacency-changes

R2# show running-config

R2 ! interface Loopback0  description **Loopback**  ip address 192.168.2.2 255.255.255.255  ip ospf 2 area 0 ! interface Ethernet0/0  description **Connected to R2-LAN**  ip address 10.10.120.1 255.255.255.0  ip ospf 2 area 0 ! interface Ethernet0/1  description **Connected to L2SW**  ip address 10.10.230.2 255.255.255.0  ip ospf 2 area 0 ! router ospf 2  log-adjacency-changes

R3# show running-config

R3 username R6 password CISCO36 ! interface Loopback0  description **Loopback**  ip address 192.168.3.3 255.255.255.255  ip ospf 3 area 0 ! interface Ethernet0/0  description **Connected to L2SW**  ip address 10.10.230.3 255.255.255.0  ip ospf 3 area 0 ! interface Serial1/0  description **Connected to R4-Branch1 office**  ip address 10.10.240.1 255.255.255.252  encapsulation ppp  ip ospf 3 area 0 ! interface Serial1/1  description **Connected to R5-Branch2 office**  ip address 10.10.240.5 255.255.255.252  encapsulation ppp  ip ospf hello-interval 50  ip ospf 3 area 0 ! interface Serial1/2  description **Connected to R6-Branch3 office**  ip address 10.10.240.9 255.255.255.252  encapsulation ppp  ip ospf 3 area 0  ppp authentication chap ! router ospf 3  router-id 192.168.3.3 !

R4# show running-config

R4 ! interface Loopback0  description **Loopback**  ip address 192.168.4.4 255.255.255.255  ip ospf 4 area 2 ! interface Ethernet0/0  ip address 172.16.113.1 255.255.255.0  ip ospf 4 area 2 ! interface Serial1/0  description **Connected to R3-Main Branch office**  ip address 10.10.240.2 255.255.255.252  encapsulation ppp  ip ospf 4 area 2 ! router ospf 4  log-adjacency-changes

R5# show running-config

R5 ! interface Loopback0  description **Loopback**  ip address 192.168.5.5 255.255.255.255  ip ospf 5 area 0 ! interface Ethernet0/0  ip address 172.16.114.1 255.255.255.0  ip ospf 5 area 0 ! interface Serial1/0  description **Connected to R3-Main Branch office**  ip address 10.10.240.6 255.255.255.252  encapsulation ppp  ip ospf 5 area 0 ! router ospf 5  log-adjacency-changes

R6# show running-config

R6 username R3 password CISCO36 ! interface Loopback0  description **Loopback**  ip address 192.168.6.6 255.255.255.255  ip ospf 6 area 0 ! interface Ethernet0/0  ip address 172.16.115.1 255.255.255.0  ip ospf 6 area 0 ! interface Serial1/0  description **Connected to R3-Main Branch office**  ip address 10.10.240.10 255.255.255.252  encapsulation ppp  ip ospf 6 area 0  ppp authentication chap ! router ospf 6  router-id 192.168.3.3 !

Which option would fix the issue?
A . R1 ethernet0/1 is shutdown. Configure the no shutdown command.
B . R1 ethernet0/1 configured with a non-default OSPF hello interval of 25, configure no ip ospf hello interval 25
C . R2 ethernet0/1 and R3 ethernet0/0 are configured with a non-default OSPF hello interval of 25; configure no ip ospf hello interval 25
D . Enable OSPF for R1 ethernet0/1; configure ip ospf 1 area 0 command under ethernet0/1

Answer: B

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