Which option is the primary purpose of central service MPLS VPNs?

Question

Options

• Aprovide customer access to provider resources while ensuring customers cannot communicate
• Bprovide the provider access to customer resources while ensuring customers cannot
• Cprovide other service providers access to provider resources
• Dprovide other service providers access to customer resources

• A
  86% (19)
• B
  9% (2)
• D
  5% (1)

Explanation

Option A is correct because central service MPLS VPNs use a hub-and-spoke architecture where multiple customer sites can reach shared resources hosted by the provider (such as internet gateways, shared servers, or security services), while remaining completely isolated from one another - traffic between customer spokes cannot flow directly.

B is wrong because the direction is reversed: it's customers accessing provider resources, not the provider accessing customer resources. C is wrong because it describes inter-provider connectivity (Inter-AS scenarios), not the central service model. D is wrong for the same reason as C - inter-provider access to customer resources is a different MPLS VPN concept entirely.

Memory tip: Picture a bicycle wheel - the hub holds the shared services, and each spoke is a customer site. All spokes connect to the hub, but spokes never touch each other. "Central service = hub access, customer isolation."

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