300-435 Question 152
Select 3A large enterprise is transitioning from a traditional network to a software-defined network (SDN). The IT team is tasked with improving network scalability and centralizing management to streamline operations. Which key characteristics of SDN differentiate it from a traditional network and align with the enterprise's requirements?
- A
Centralized control plane for network management
- B
Decentralized control plane with device-specific configurations
- C
Separation of the control plane and data plane
- D
Manual configuration of each network device
- E
Programmable network behavior using APIs
Show answer and explanation
Correct answers: A, C, E
Explanation
Software-defined networking (SDN) introduces key capabilities such as a centralized control plane, separation of the control and data planes, and programmability using APIs. These features make SDN more scalable, easier to manage, and highly adaptable compared to traditional networks, which rely on decentralized control planes and manual configurations. The enterprise's requirements for scalability and centralized management align with SDN's architecture, making it the preferred choice.
- A. Correct.
SDN utilizes a centralized control plane, which simplifies network management and enhances scalability compared to traditional networks where the control plane is distributed across devices.
- B. Incorrect.
A decentralized control plane is a characteristic of traditional networks, where each device manages its own control plane, making it harder to scale and manage.
- C. Correct.
SDN separates the control plane from the data plane, allowing for easier programmability and centralized management, which is a significant difference from traditional networks.
- D. Incorrect.
Manual configuration of devices is a feature of traditional networks, making them more error-prone and less efficient compared to SDN's automated and centralized approach.
- E. Correct.
SDN allows for programmable network behavior using APIs, enabling automation and integration with other systems for dynamic network adjustments, unlike traditional networks.