Cisco Certified Network Associate (CCNA) 200-301 — Question 109

The correct answer is D. Option D: R7# interface FastEthernet1/0 ip address 10.88.31.126 255.255.255.192 R8# interface FastEthernet0/0 ip address 10.19.63.94 255.255.255.240 R9# interface FastEthernet1/1 ip address 10.23.98.158 255.255.255.224

Explanation

OSPF elects a designated router on multiaccess networks to reduce adjacency and LSA exchange overhead.