- A. This will not work as the subnet mask on serial interfaces must be /30.
- B. What is shown as being configured would be considered a default route.
- C. This configuration creates a bidirectional path between RouterA and RouterB.
- D. The command ip route 172.16.1.0 255.255.255.0 s0/0/0 would provide similar routing functionality.
Answer: Option D.
No answer description available for this question