350-401 Question 7
Select 3A company is redesigning its enterprise network to improve scalability, availability, and manageability. Which combination of design principles should be implemented to achieve these goals?
- A
Modular design with hierarchical layers
- B
Flat network topology for simplified routing
- C
Redundant links and devices to prevent single points of failure
- D
Centralized traffic flow through a single core switch
- E
Scalable addressing through proper IP subnetting
- F
Elimination of network segmentation to simplify management
Show answer and explanation
Correct answers: A, C, E
Explanation
Enterprise network design relies on principles such as modular design (to improve manageability and scalability), redundancy (to ensure availability), and scalable addressing (to support future growth). Avoiding flat topologies, centralized traffic bottlenecks, and eliminating segmentation ensures the network remains resilient, scalable, and secure. These principles collectively enhance the network's ability to handle increased size and complexity while maintaining performance and reliability.
- A. Correct.
Modular design with hierarchical layers is a core design principle that improves manageability, scalability, and performance by separating the network into layers such as access, distribution, and core.
- B. Incorrect.
Flat network topology is not recommended in enterprise networks because it limits scalability, increases broadcast traffic, and reduces fault isolation capabilities.
- C. Correct.
Redundant links and devices are essential to ensure high availability by eliminating single points of failure, which is critical for enterprise networks.
- D. Incorrect.
Centralized traffic flow through a single core switch creates a bottleneck and introduces a single point of failure, which goes against scalability and availability design principles.
- E. Correct.
Scalable addressing with proper IP subnetting ensures efficient use of IP address space and supports future growth, making it a key part of a scalable network design.
- F. Incorrect.
Eliminating network segmentation reduces security and limits the ability to isolate traffic, making it unsuitable for enterprise network design.