D415 Software Defined Networking - Set 2 - Part 2

Correct Answer: Controller diversity

Controller diversity improves SDN security by using diverse controllers, reducing the risk of common vulnerabilities and lateral movement by attackers.

Correct Answer: Centralized control plane

The centralized control plane in SDN enables dynamic control and monitoring of network traffic, allowing network operators to adjust flows as needed.

Correct Answer: Data plane

The data plane in SDN is responsible for forwarding data between network devices based on instructions from the control plane.

Correct Answer: OpenFlow

OpenFlow is the most common protocol used in SDN for managing flow tables on network devices, allowing centralized control over network traffic.

Correct Answer: Control plane

The control plane is responsible for making decisions on how packets should be forwarded, based on the rules defined in flow tables.

Correct Answer: Trove

Trove is OpenStacks database as a service module, enabling users to deploy and manage both relational and non-relational databases.

Correct Answer: Automated recovery

Automated recovery mechanisms in SDN help ensure service availability by restoring functionality after disruptions caused by attacks or failures.

Correct Answer: Fine-grained data flow and policy management

Fine-grained data flow and policy management allows for precise control over network traffic, reducing the attack surface by limiting access to sensitive areas.

Correct Answer: SDN controller

The SDN controller is the central decision-making component of the network, responsible for controlling flow tables and determining traffic paths.

Correct Answer: Controller-Switch trust

Controller-Switch trust ensures that the SDN controller and switches communicate securely, preventing malicious devices from inserting fake flows.

Correct Answer: Heat

Heat is OpenStacks orchestration service that automates the deployment of cloud applications and resources, using templates to simplify and standardize processes.

Correct Answer: Making decisions on network traffic flow

The control plane in SDN is responsible for making decisions on how network traffic is managed and directing the data plane to handle traffic accordingly.

Correct Answer: Controller diversity

Controller diversity distributes network traffic across multiple controllers, reducing the risk of failures and improving the overall security and reliability of the network.

Correct Answer: OpenFlow

OpenFlow is the protocol that defines how SDN controllers communicate with network devices like switches and routers, enabling centralized management of the network.

Correct Answer: Shuffling

Shuffling is a moving target defense technique that involves rearranging network resources to make it harder for attackers to exploit vulnerabilities.

Correct Answer: Data plane

The data plane processes and forwards packets according to the forwarding rules defined by the control plane in the SDN architecture.

Correct Answer: Sahara

Sahara is the OpenStack module responsible for provisioning Hadoop clusters and other big data processing frameworks, providing scalable data processing capabilities.

Correct Answer: Dynamic device association

Dynamic device association ensures that network devices are associated with the correct controllers, dealing with faults and improving network reliability.

Correct Answer: Southbound API

The southbound API in SDN manages interactions between the control plane and data plane devices, allowing the controller to configure and manage network traffic.

Correct Answer: Proactive and reactive security recovery mechanisms

Proactive and reactive security recovery mechanisms ensure that core network services remain available even in the event of an attack, enabling continuous operation.