CCDE: Cisco Certified Design Expert (Practical) — Question 1

Which relationship between iBGP and the underlying physical topology is true?

Answer options

• A. iBGP full mesh requires an underlying fully meshed network topology.
• B. iBGP full mesh requirement does not dictate any specific network topology.
• C. iBGP does not work on a ring network topology even with an underlying IGP.
• D. iBGP can work only on a ring network topology with a link-state protocol like OSPF or IS-IS.

Correct answer: B

Explanation

The correct answer is B because iBGP full mesh does not impose a requirement for a specific network topology; it can operate over various topologies. Option A is incorrect as iBGP can function without a fully meshed network. Options C and D are also incorrect since iBGP can work on a variety of topologies, including those with an IGP.