350-401 Question 5
Select 3An enterprise network is being designed to support high availability and scalability for its critical services. Which design principles should the network architect prioritize to meet these requirements?
- A
Implement modular design by segmenting the network into layers such as access, distribution, and core.
- B
Use a flat network topology to simplify the design and reduce costs.
- C
Deploy redundant links and devices to prevent single points of failure.
- D
Integrate security mechanisms such as firewalls and access control lists into the network design.
- E
Ensure minimal redundancy to save on hardware and operational costs.
Show answer and explanation
Correct answers: A, C, D
Explanation
Designing an enterprise network for high availability and scalability involves applying key principles such as modular design, redundancy, and integrated security. Modular design ensures the network is scalable and easy to manage, redundancy eliminates single points of failure to enhance availability, and security mechanisms protect the network's integrity. Flat topologies and minimal redundancy, while cost-saving, do not meet the requirements for a robust enterprise network.
- A. Correct.
Implementing a modular design by segmenting the network into layers ensures scalability and simplifies troubleshooting, making it a core design principle for enterprise networks.
- B. Incorrect.
Flat network topologies lack scalability and resilience, making them unsuitable for enterprise networks that require high availability and scalability.
- C. Correct.
Redundant links and devices eliminate single points of failure, ensuring high availability in the network, which is essential for critical services.
- D. Correct.
Integrating security mechanisms is a fundamental design principle to protect the network and its services, complementing availability and scalability by ensuring secure operations.
- E. Incorrect.
Minimizing redundancy compromises availability and resilience, which are critical for enterprise networks, making this approach unsuitable.