350-401 Question 2
Select 3An enterprise network is undergoing a redesign to adopt a hierarchical campus architecture model. The network architect plans to implement modularity and scalability to improve performance and ease of troubleshooting. Which of the following design considerations align with the hierarchical campus architecture model?
- A
Implementing a core layer that provides high-speed connectivity between distribution layers.
- B
Collapsing the core and access layers to reduce hardware costs.
- C
Designing the distribution layer for policy enforcement and inter-VLAN routing.
- D
Placing end devices directly in the core layer to minimize latency.
- E
Using the access layer to aggregate end devices and provide network access.
Show answer and explanation
Correct answers: A, C, E
Explanation
The hierarchical campus architecture consists of three layers: the access, distribution, and core layers. Each layer has specific roles to ensure modularity, scalability, and ease of troubleshooting. The core layer provides high-speed backbone connectivity, the distribution layer enforces policies and routes traffic, and the access layer connects end devices. This layered approach improves network performance and simplifies management.
- A. Correct.
Correct. The core layer is responsible for high-speed connectivity and acts as the backbone of the hierarchical architecture.
- B. Incorrect.
Incorrect. Collapsing the core and access layers contradicts the hierarchical model and reduces modularity and scalability.
- C. Correct.
Correct. The distribution layer is designed for policy enforcement, inter-VLAN routing, and acting as an intermediary between the access and core layers.
- D. Incorrect.
Incorrect. End devices should not be placed in the core layer as it is designed for high-speed backbone connectivity, not endpoint access.
- E. Correct.
Correct. The access layer is responsible for aggregating end devices, such as PCs and IP phones, and providing them with network access.