CCDE: Cisco Certified Design Expert (Practical) — Question 183

A business requirement stating that failure of WAN access for dual circuits into an MPLS provider for a Data Centre cannot happen due to related service credits that would need to be paid has led to diversely routed circuits to different points of presence on the providers network? What should a network designer also consider as part of the requirement?

Answer options

• A. Dual PSUs & Supervisors on each MPLS router
• B. Provision of an additional MPLS provider
• C. Out of band access to the MPLS routers
• D. Ensuring all related remote branches are dual homed to the MPLS network

Correct answer: B

Explanation

The correct answer is B, as having an additional MPLS provider increases redundancy and further mitigates the risk of WAN access failure. Options A and C focus on internal equipment redundancy, which, while important, do not address the need for external failover. Option D relates to remote branch connectivity but does not provide the same level of protection against WAN outages as having a second provider.