350-401 Question 9
Single answerAn enterprise is planning to upgrade their network design to support scalability, redundancy, and future cloud integration. They currently have a flat 2-tier architecture and want to ensure better segmentation and layer independence. Which network design would best suit their requirements?
- A
Retain the 2-tier architecture and increase the number of switches at the access layer.
- B
Adopt a 3-tier architecture with core, distribution, and access layers.
- C
Implement a fabric-based architecture for better automation and scalability.
- D
Migrate entirely to a cloud-based network design to eliminate on-premises infrastructure.
Show answer and explanation
Correct answer: B
Explanation
The 3-tier architecture is the best fit for the enterprise's requirements because it introduces a hierarchical structure that supports scalability, redundancy, and segmentation while maintaining a balance between complexity and functionality. The other options either fail to address the stated needs or go beyond the scope of the current requirements.
- A. Incorrect.
Retaining the 2-tier architecture does not address the need for better segmentation and scalability. Adding more access switches could increase complexity without solving the core issues.
- B. Correct.
A 3-tier architecture provides clear separation between core, distribution, and access layers, enhancing scalability, redundancy, and layer independence. It is a suitable choice for the stated requirements.
- C. Incorrect.
A fabric-based architecture is highly scalable and supports automation, but it may be overkill for the current requirements if the enterprise is not ready for a full transformation.
- D. Incorrect.
Migrating entirely to the cloud may not be feasible for an enterprise that still needs on-premises infrastructure, especially since the requirements do not specifically call for a cloud-only solution.