ICND2: Interconnecting Cisco Networking Devices Part 2 (legacy) — Question 41

Which combination of values is valid for a router-on-a-stick implementation?

Answer options

• A. IP address 173.15.20.6/20, gateway 173.15.30.1, and VLAN 20
• B. FastEhernet interface 0/0.30, IP address 173.15.20.33/27, gateway 173.15.20.1 and VLAN 30
• C. IP address 173.15.30.6/26, gateway 173.15.30.62, and VLAN 20
• D. FastEthernet interface 0/0.20, IP address 173.15.30.33/27, gateway 173.15.30.1 and VLAN 30 C

Correct answer:

Explanation

The correct configuration for a router-on-a-stick implementation requires an IP address, gateway, and VLAN to be properly aligned. Option D features the correct VLAN tagging with FastEthernet interface 0/0.20, while the other options either have incorrect VLAN assignments or misconfigured IP addresses that do not support the routing requirements.