Exam CISSP topic 1 question 133 discussion

A. Control plane - controls how data packets are forwarded (such as using a routing table) B. Application plane - On a network, the Application Plane is the layer that has applications and services that make requests for network functions from the Control Plane and the Data plane. C. Traffic plane - think it's data plane as it carries traffic D. Data plane - forwards the packet (a.k.a forwarding plane)

SDN = A

In Software-Defined Networking (SDN), the infrastructure layer and control plane are two distinct layers that work together to manage and configure a network: Infrastructure layer Also known as the data plane, this layer is made up of physical and virtual devices like switches, routers, and firewalls. The infrastructure layer forwards network traffic based on instructions from the control plane. Control plane Also known as the control layer, this layer contains the centralized SDN controller that manages and configures the network. The control plane communicates with the infrastructure layer using southbound APIs. The infrastructure layer and control plane work together to provide network administrators with a high level of control and flexibility. The separation of layers allows each plane to focus on its specific tasks, such as the control plane prioritizing efficient routing and decision-making. SDN uses APIs to enable communication between the layers:

The control plane decides how data is managed, routed, and processed, while the data plane is responsible for the actual moving of data.

D. Data plane https://www.computernetworkingnotes.com/ccna-study-guide/data-plane-control-plane-and-management-plane.html The control plane captures and stores all the routing information, but the data plane uses that information to forward the packets based on all the routing tables, protocols and network policies that the control plane captures and maintains. Basically, teh control plane is the map that the data plane uses to drive

The control plane captures and stores all the routing information, but the data plane uses that information to forward the packets based on all the routing tables, protocols and network policies that the control plane captures and maintains. Basically, teh control plane is the map that the data plane uses to drive

D. The control and data planes do not describe the data itself. Rather, these planes describe how the device handles the data. For example, does the device process a packet itself, or does it forward it to another device? Control plane is slow and it handles/processes requests. Data plane is fast and it forwards traffic. A few quick examples; SSH to a router; Control Plane Passing SSH traffic through to another device; Data Plane BGP neighbor relationship; Control Plane Forwarding BGP traffic; Data Plane OSPF neighbourships and building the LSDB; Control Plane The data plane needs to provide a high-speed and low-latency path. To achieve this, a lot of data plane implementation is in hardware.

D. The control and data planes do not describe the data itself. Rather, these planes describe how the device handles the data. For example, does the device process a packet itself, or does it forward it to another device? Control plane is slow and it handles/processes requests. Data plane is fast and it forwards traffic. A few quick examples; SSH to a router; Control Plane Passing SSH traffic through to another device; Data Plane BGP neighbour relationship; Control Plane Forwarding BGP traffic; Data Plane OSPF neighbourships and building the LSDB; Control Plane The data plane need to provide a high speed and low latency path. To achieve this, a lot of data plane implementation is in hardware.

The control plane is responsible for determining how traffic should flow based on the status of the infrastructure layer. It is responsible for making decisions about the best path for traffic to take through the network, and for setting up and tearing down connections between network devices. The other planes listed (application plane, traffic plane, and data plane) are not directly responsible for determining how traffic should flow based on the status of the infrastructure layer.

The control plane makes routing decisions. With SDN routing, decisions are made remotely instead of on each individual router.

the correct answer is D. Data plane. The data plane, also known as the forwarding plane, is responsible for handling the actual movement of network traffic. It performs the forwarding and processing of data packets based on the information provided by the control plane. The data plane is implemented in network devices such as routers and switches, and its primary function is to forward packets based on predefined rules or policies.

Answer D: Data plane is Forwarding Plane. The so-called Forwarding Plane is to process incoming network packets in the router architecture, and determine which network interface to forward the network packets to next by looking up the routing table.

The Control plane is responsible for managing the traffic flow based on the status of the infrastructure layer. Specifically, it handles the routing of traffic, manages network topology and configuration, and communicates with other network devices. In the context of the given question, the Control plane would be the most appropriate answer as it is responsible for determining how traffic should flow based on the status of the infrastructure layer.

A. Control plane determines how traffic should flow based on the status of the infrastructure layer.

Ans -= A Software-Defined Networks (SDNs) SDNs decouple the control plane from the data plane (or forwarding plane). The control plane uses protocols to decide where to send traffic, and the data plane includes rules that decide whether traffic will be forwarded.

Should be A by definition of SDN Controller Plan.

A. https://www.cloudflare.com/learning/network-layer/what-is-the-control-plane/#:~:text=The%20control%20plane%20is%20the,is%20the%20actual%20forwarding%20process. What is the control plane? | Control plane vs. data plane The control plane is the part of a network that controls how data is forwarded, while the data plane is the actual forwarding process.