The controller has a global view of the network, and it can easily ensure that the network is in a consistent and optimal configuration. Which two statements describe a centralized SDN control path? (Choose two.)
The controller has a global view of the network, and it can easily ensure that the network is in a consistent and optimal configuration. Which two statements describe a centralized SDN control path? (Choose two.)
A centralized SDN control path involves a controller that acts as the central point of management, allowing it to support all southbound APIs and therefore facilitate easy integration with legacy equipment. This centralization, however, poses challenges in scaling the controller cluster for services that require stateful handling, such as DHCP and load-balancing, due to increased complexity and data handling requirements. Consequently, the statements about the centralized controller's support for southbound APIs and the difficulties in scaling for stateful services accurately describe a centralized SDN control path.
C. A centralized controller can support all southbound APIs, which allows for easy integration with legacy equipment. The controller acts as a central point of control and can communicate with network devices using southbound APIs. This allows for seamless integration with existing legacy equipment, enabling centralized management and control. E. Scaling of the centralized controller cluster is challenging for services like DHCP and load-balancing. As the network grows and the number of devices and services increases, scaling the centralized controller cluster can become challenging, especially for services that require stateful handling such as DHCP (Dynamic Host Configuration Protocol) and load-balancing. The stateful nature of these services adds complexity to the scaling process. The other statements (A, B, D) are not accurate descriptions of a centralized SDN control path.
I believe it's CE. Good link http://blog.gampel.net/2015/08/centralized-vs-distributed-sdn-control.html
why not CD
I think CE is correct. If the controller fail the management plane is gone. So what. We need to bring it back for changes. As long as controlplan and dataplan is independent a controller outage is not a big deal
CE is good
I think ans are C and E.