Exam CISSP-ISSAP topic 1 question 16 discussion

Answer is more likely: B. Fully meshed topology A partially meshed topology involves connecting some, but not all, nodes in the network to each other. While this can be a valid choice in certain scenarios, it may not provide the best balance for regional topologies in terms of redundancy and performance. In a partially meshed topology, there may be some nodes that are not directly connected to each other, leading to a lower level of redundancy compared to a fully meshed topology. Redundancy is crucial for network resilience, and a partially meshed topology might not offer as many alternate paths in case of link failures. For a WAN network where the goal is to achieve a balance between the number of virtual circuits, redundancy, and performance, a fully meshed topology is often preferred because it maximizes redundancy and allows for efficient communication between nodes. In summary, while a partially meshed topology might be suitable in certain situations, a fully meshed topology is typically more aligned with the requirements stated in the question.

In terms of achieving a balance in the number of virtual circuits between regional topologies, a partially meshed topology could be a valid choice. A partially meshed topology involves selectively connecting certain sites with direct links while allowing others to connect through intermediate nodes or hubs. This approach provides flexibility in designing the network based on requirements such as traffic patterns or site importance. By choosing specific connections strategically, you can control the number of virtual circuits established within each regional topology. This flexibility enables you to optimize resources and manage costs efficiently. It also allows for easier scalability since new connections can be added as needed without having to establish direct links for all locations. Therefore, if your primary consideration is achieving balance in terms of the number of virtual circuits among regional topologies, selecting Option D - Partially Meshed Topology would indeed be appropriate.

D. Partially meshed topology