4.1-3. The control plane versus the data plane. For each of the actions below, select those actions below that are primarily in the network-layer data plane. The other actions that you don't select below then correspond to control-plane actions.  Group of answer choicesComputing the contents of the forwarding table.Dropping a datagram due to a congested (full) output buffer.Monitoring and managing the configuration and performance of an network device.Moving an arriving datagram from a router’s input port to output portLooking up address bits in an arriving datagram header in the forwarding table.

.1-4. What type of control plane?  We've seen that there are two approaches towards implementing the network control plane - a per-router control-plane approach and a software-defined networking (SDN) control-plane approach.  Which of the following actions occur in a per-router control-plane approach? The other actions that you don't select below then correspond to actions in an SDN control plane.  Group of answer choicesA control agent in router receives a complete forwarding table, which it installs anduses to locally control datagram forwarding.A router exchanges messages with another router, indicating the cost for it (the sending router) to reach a destination host.All routers in the network send information about their incoming and outgoing links to a logically centralized controller.Routers send information about their incoming and outgoing links to other routers in the network.

Which network device plane provides the traffic forwarding function?control planemanagement planedata planeforwarding plane

Which network device plane builds the structures required for traffic forwarding?data planemanagement planeforwarding planecontrol plane

3. Explain the general principles of congestion control. Describe congestion control in datagram subnets '

Which network device plane provides the traffic forwarding function?