Cisco Certified Network Associate (200-301 CCNA) – Question470


Refer to the exhibit. Which configuration allows routers R14 and R86 to form an OSPFv2 adjacency while acting as a central point for exchanging OSPF information between routers?

A.
R14#
interface FastEthernet0/0
ip address 10.73.65.65 255.255.255.252
ip ospf network broadcast
ip ospf priority 0
ip mtu 1400
router ospf 10
router-id 10.10.1.14
network 10.10.1.14 0.0.0.0 area0
network 10.73.65.64 0.0.0.3 area0
R86#
interface Loopback0
ip address 10.10.1.86 255.255.255.255
interface FastEthernet0/0
ip address 10.73.65.66 255.255.255.252
ip ospf network broadcast
ip mtu 1500
router ospf 10
router-id 10.10.1.86
network 10.10.1.86 0.0.0.0 area 0
network 10.73.65.64 0.0.0.3 area 0
B. R14#
interface Loopback0
ip ospf 10 area 0
interface FastEthernet0/0
ip address 10.73.65.65 255.255.255.252
ip ospf network broadcast
ip ospf 10 area 0
ip mtu 1500
router ospf 10
ip ospf priority 255
router-id 10.10.1 14
R86#
interface Loopback0
ip ospf 10 area 0
interface FastEthernet0/0
ip address 10.73.65.66 255.255.255.252
ip ospf network broadcast
ip ospf 10 area 0
ip mtu 1500
router ospf 10
router-id 10.10.1.86
C. R14#
interface FastEthernet0/0
ip address 10.73.65.65 255.255.255.252
ip ospf network broadcast
ip ospf priority 255
ip mtu 1500
router ospf 10
router-id 10.10.1.14
network 10.10.1.14 0.0.0.0 area0
network 10.73.65.64 0.0.0.3 area0
R86#

interface FastEthernet0/0
ip address 10.73.65.66 255.255.255.252
ip ospf network broadcast
ip mtu 1500
router ospf 10
router-id 10.10.1.86
network 10.10.1.86 0.0.0.0 area 0
network 10.73.65.64 0.0.0.3 area 0
D. R14#
interface FastEthernet0/0
ip address 10.73.65.65 255.255.255.252
ip ospf network broadcast
ip ospf priority 255
ip mtu 1500
router ospf 10
router-id 10.10.1.14
network 10.10.1.14 0.0.0.0 area0
network 10.73.65.64 0.0.0.3 area0

R86#
interface FastEthernet0/0
ip address 10.73.65.66 255.255.255.252
ip ospf network broadcast
ip mtu 1400
router ospf 10
router-id 10.10.1.86
network 10.10.1.86 0.0.0.0 area 0
network 10.73.65.64 0.0.0.3 area 0

Correct Answer: C