350-401 Question 11
Single answerAn organization is planning to deploy a new enterprise network to support high availability, scalability, and simplified management. They require a design that supports hierarchical separation of core, distribution, and access layers while allowing for future growth and potential multi-cloud integration. Which high-level enterprise network design best meets these requirements?
- A
2-Tier (Collapsed Core) Design
- B
3-Tier Design
- C
Fabric Design
- D
Flat Network Design
Show answer and explanation
Correct answer: B
Explanation
The 3-Tier Design is best suited for large enterprise networks requiring scalability, high availability, and a future-proof architecture. It separates the core, distribution, and access layers, enabling efficient traffic management and easier integration with multi-cloud environments. Other designs, such as 2-Tier or Flat Networks, lack the necessary scalability or structure for such requirements, while Fabric Design is more specialized for automation and advanced use cases.
- A. Incorrect.
The 2-Tier (Collapsed Core) design consolidates the core and distribution layers, which can simplify small or medium-sized networks but lacks scalability and flexibility for larger networks or multi-cloud integration.
- B. Correct.
The 3-Tier Design provides a hierarchical structure with separate core, distribution, and access layers, offering scalability, high availability, and better support for future growth and multi-cloud integration.
- C. Incorrect.
Fabric design focuses on advanced technologies like SD-Access. While fabrics might provide simplified management and scalability, they are typically over-engineered for traditional hierarchical needs and are better suited for specific use cases like microsegmentation or automation.
- D. Incorrect.
Flat Network Design provides no hierarchical separation, making it unsuitable for large enterprises requiring scalability, high availability, and growth support.