300-420 Question 61
Select 3An enterprise network design team is tasked with improving the resiliency and scalability of their campus network. They plan to implement a hierarchical network design to simplify management and enhance performance. Which of the following design considerations align with the principles of a hierarchical campus network architecture?
- A
Divide the network into access, distribution, and core layers with clearly defined functions.
- B
Implement a flat Layer 2 network to reduce configuration complexity.
- C
Use redundant links between the distribution and core layers for high availability.
- D
Deploy a single Layer 3 switch at the core to optimize costs.
- E
Aggregate access layer switches at the distribution layer to reduce oversubscription.
Show answer and explanation
Correct answers: A, C, E
Explanation
A hierarchical campus network architecture is designed to enhance scalability, resiliency, and manageability. It relies on dividing the network into functional layers (access, distribution, core) with clear responsibilities. Best practices include implementing redundancy, reducing oversubscription, and avoiding single points of failure. These principles ensure a robust and efficient enterprise network.
- A. Correct.
Dividing the network into access, distribution, and core layers is a fundamental principle of hierarchical network design, ensuring modularity and simplified troubleshooting.
- B. Incorrect.
A flat Layer 2 network does not align with hierarchical design principles, as it lacks scalability and redundancy, leading to potential broadcast storm issues.
- C. Correct.
Redundant links between the distribution and core layers are critical for high availability and resiliency in a hierarchical design.
- D. Incorrect.
Deploying a single Layer 3 switch at the core introduces a single point of failure, which goes against the principles of resiliency and redundancy in hierarchical designs.
- E. Correct.
Aggregating access layer switches at the distribution layer helps reduce oversubscription and improves traffic management, which is a best practice in hierarchical network design.