200-301 Question 469
Select 2A network engineer is tasked with updating the company's traditional network to a controller-based networking model. Which of the following characteristics highlight the key differences between the two approaches?
- A
Controller-based networking centralizes management and uses APIs for programmability, while traditional networks rely on manual device configurations.
- B
Traditional networks are designed to dynamically adapt to application requirements, unlike controller-based networks which require static configurations.
- C
Controller-based networking separates the control plane and data plane, while traditional networks typically integrate both within individual devices.
- D
Traditional networks are inherently designed to support automation and programmability, unlike controller-based networks that require additional tools to achieve the same.
Show answer and explanation
Correct answers: A, C
Explanation
The primary differences between traditional networks and controller-based networking are in how management and control are handled. Controller-based networking centralizes management, uses APIs for programmability, and separates the control and data planes for more efficient operations. Traditional networks, on the other hand, rely on manual configurations and integrate the control and data planes within individual devices. These distinctions are key to understanding why organizations are increasingly adopting controller-based architectures.
- A. Correct.
Correct: Controller-based networking centralizes management using APIs, enabling programmability and faster configuration changes. Traditional networks often require manual, device-specific configurations.
- B. Incorrect.
Incorrect: Traditional networks are not inherently dynamic or adaptive to application requirements. In contrast, controller-based networking allows for dynamic policy and configuration adjustments based on application needs.
- C. Correct.
Correct: A key advantage of controller-based networking is the separation of the control plane and data plane, which enables centralized control. Traditional networks typically integrate these functions within each device.
- D. Incorrect.
Incorrect: Traditional networks are not designed to inherently support automation or programmability. Controller-based networks are explicitly built for these functionalities.