Characteristics of Software-Defined Networks | 300-435-ENAUTO Exam | Cisco

Software-Defined Networks: Features and Comparison

Question

Which two features are characteristics of software-defined networks when compared to traditional infrastructure? (Choose two.)

Answers

Explanations

Click on the arrows to vote for the correct answer

A. B. C. D. E.

CD.

https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Data_Center/VMDC/SDN/SDN.html

Software-defined networking (SDN) is a networking architecture approach that separates the network control plane from the forwarding plane to simplify network management, improve network scalability and flexibility, and reduce costs. Here are the characteristics of SDN when compared to traditional infrastructure:

  1. Use overlay networks: SDN uses overlay networks to provide virtual network services that are decoupled from the physical network topology. This overlay network abstraction simplifies the network design and implementation, as network administrators can manage network services and policies in a centralized manner, without needing to configure each individual network device separately.

  2. Designed to change: SDN is designed to be flexible and adaptable to changing network requirements. The network control plane is managed through a centralized software controller, which can dynamically reconfigure the network based on application needs, traffic patterns, or security policies. This agility allows network administrators to respond quickly to changing business requirements, without needing to manually configure each device separately.

Therefore, the correct answers are C and D:

C. Use overlay networks: SDN uses overlay networks to provide virtual network services that are decoupled from the physical network topology.

D. Designed to change: SDN is designed to be flexible and adaptable to changing network requirements. The network control plane is managed through a centralized software controller, which can dynamically reconfigure the network based on application needs, traffic patterns, or security policies.