Cisco CCNA 200-301 Controller-Based Networking and SDN Practice Test

Topic 41 focuses on Controller-Based Networking and SDN Architecture for the Cisco Certified Network Associate (CCNA) certification and the 200-301 exam, using Cisco networking and Cisco IOS concepts where relevant. For broader exam preparation, review the Cisco CCNA 200-301 Exam Dumps page. Each question includes a concise explanation of the correct answer and the technical reason the other choices are incorrect.

Question 1

Which network function learns topology and builds forwarding decisions, routing information, or policy state?

1. Controller
2. Centralized policy
3. Underlay
4. Control plane

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes the network function that learns topology and builds forwarding decisions, routing information, or policy state.

Incorrect Answers

Answer A is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

Answer B is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer C is incorrect because the “Underlay” option describes a different concept: the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

 

Question 2

Which network function forwards packets or frames according to installed forwarding information?

1. Centralized policy
2. Data plane
3. Underlay
4. Controller

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes the network function that forwards packets or frames according to installed forwarding information.

Incorrect Answers

Answer A is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer C is incorrect because the “Underlay” option describes a different concept: the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Answer D is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

 

Question 3

Which network plane contains the functions and protocols used to configure, monitor and administer devices?

1. Northbound API
2. Management plane
3. Overlay
4. Controller

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes the functions and protocols used to configure, monitor, and administer network devices.

Incorrect Answers

Answer A is incorrect because the “Northbound API” option describes a different concept: an interface through which applications communicate with a controller to request information or network behavior.

Answer C is incorrect because the “Overlay” option describes a different concept: a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

Answer D is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

 

Question 4

Which centralized or logically centralized system provides policy, control, automation, or management functions to network infrastructure?

1. Overlay
2. Northbound API
3. Controller
4. Control plane

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

Incorrect Answers

Answer A is incorrect because the “Overlay” option describes a different concept: a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

Answer B is incorrect because the “Northbound API” option describes a different concept: an interface through which applications communicate with a controller to request information or network behavior.

Answer D is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

 

Question 5

What is an interface through which a controller communicates with and programs network devices or infrastructure?

1. Underlay
2. Centralized policy
3. Data plane
4. Southbound API

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes an interface through which a controller communicates with and programs network devices or infrastructure.

Incorrect Answers

Answer A is incorrect because the “Underlay” option describes a different concept: the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Answer B is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer C is incorrect because the “Data plane” option describes a different concept: the network function that forwards packets or frames according to installed forwarding information.

 

Question 6

What is an interface through which applications communicate with a controller to request information or network behavior?

1. Overlay
2. Northbound API
3. Centralized policy
4. Southbound API

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes an interface through which applications communicate with a controller to request information or network behavior.

Incorrect Answers

Answer A is incorrect because the “Overlay” option describes a different concept: a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

Answer C is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer D is incorrect because the “Southbound API” option describes a different concept: an interface through which a controller communicates with and programs network devices or infrastructure.

 

Question 7

Which physical IP transport network provides basic reachability beneath an overlay or software-defined fabric?

1. Underlay
2. Data plane
3. Control plane
4. Fabric

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Incorrect Answers

Answer B is incorrect because the “Data plane” option describes a different concept: the network function that forwards packets or frames according to installed forwarding information.

Answer C is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

Answer D is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

 

Question 8

What is a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation?

1. Overlay
2. Control plane
3. Fabric
4. Northbound API

Correct Answer: A

 

Correct Answer

Answer A is correct because the selected answer describes a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

Incorrect Answers

Answer B is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

Answer C is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Answer D is incorrect because the “Northbound API” option describes a different concept: an interface through which applications communicate with a controller to request information or network behavior.

 

Question 9

What is an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services?

1. Control plane
2. Underlay
3. Overlay
4. Fabric

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Incorrect Answers

Answer A is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

Answer B is incorrect because the “Underlay” option describes a different concept: the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Answer C is incorrect because the “Overlay” option describes a different concept: a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

 

Question 10

What is a model in which policy is defined in a controller or management system and then distributed or enforced across network devices?

1. Control plane
2. Centralized policy
3. Data plane
4. Underlay

Correct Answer: B

 

Correct Answer

Answer B is correct because the selected answer describes a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Incorrect Answers

Answer A is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

Answer C is incorrect because the “Data plane” option describes a different concept: the network function that forwards packets or frames according to installed forwarding information.

Answer D is incorrect because the “Underlay” option describes a different concept: the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

 

Question 11

For Control plane, which statement is accurate?

1. The network function that learns topology and builds forwarding decisions, routing information, or policy state.
2. A centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.
3. A logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.
4. An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Correct Answer: A

 

Correct Answer

Answer A is correct because it accurately defines Control plane. The matching definition is: The network function that learns topology and builds forwarding decisions, routing information, or policy state.

Incorrect Answers

Answer B is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

Answer C is incorrect because the “Overlay” option describes a different concept: a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

Answer D is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

 

Question 12

For Data plane, which statement is accurate?

1. The network function that forwards packets or frames according to installed forwarding information.
2. An interface through which applications communicate with a controller to request information or network behavior.
3. A centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.
4. An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Correct Answer: A

 

Correct Answer

Answer A is correct because the choice accurately describes Data plane: The network function that forwards packets or frames according to installed forwarding information.

Incorrect Answers

Answer B is incorrect because the “Northbound API” option describes a different concept: an interface through which applications communicate with a controller to request information or network behavior.

Answer C is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

Answer D is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

 

Question 13

For Management plane, which statement is accurate?

1. An interface through which applications communicate with a controller to request information or network behavior.
2. An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.
3. The network function that learns topology and builds forwarding decisions, routing information, or policy state.
4. The functions and protocols used to configure, monitor, and administer network devices.

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes the functions and protocols used to configure, monitor, and administer network devices.

Incorrect Answers

Answer A is incorrect because the “Northbound API” option describes a different concept: an interface through which applications communicate with a controller to request information or network behavior.

Answer B is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Answer C is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

 

Question 14

For Controller, which statement is accurate?

1. An interface through which a controller communicates with and programs network devices or infrastructure.
2. A model in which policy is defined in a controller or management system and then distributed or enforced across network devices.
3. An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.
4. A centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

Correct Answer: D

 

Correct Answer

Answer D is correct because the selected answer describes a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

Incorrect Answers

Answer A is incorrect because the “Southbound API” option describes a different concept: an interface through which a controller communicates with and programs network devices or infrastructure.

Answer B is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer C is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

 

Question 15

For Southbound API, which statement is accurate?

1. An interface through which applications communicate with a controller to request information or network behavior.
2. The physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.
3. An interface through which a controller communicates with and programs network devices or infrastructure.
4. The network function that learns topology and builds forwarding decisions, routing information, or policy state.

Correct Answer: C

 

Correct Answer

Answer C is correct because it accurately defines Southbound API. The matching definition is: An interface through which a controller communicates with and programs network devices or infrastructure.

Incorrect Answers

Answer A is incorrect because the “Northbound API” option describes a different concept: an interface through which applications communicate with a controller to request information or network behavior.

Answer B is incorrect because the “Underlay” option describes a different concept: the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Answer D is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

 

Question 16

For Northbound API, which statement is accurate?

1. An interface through which applications communicate with a controller to request information or network behavior.
2. The network function that learns topology and builds forwarding decisions, routing information, or policy state.
3. An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.
4. A model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Correct Answer: A

 

Correct Answer

Answer A is correct because the choice accurately describes Northbound API: An interface through which applications communicate with a controller to request information or network behavior.

Incorrect Answers

Answer B is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

Answer C is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Answer D is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

 

Question 17

For Underlay, which statement is accurate?

1. A logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.
2. An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.
3. The physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.
4. A model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Incorrect Answers

Answer A is incorrect because the “Overlay” option describes a different concept: a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

Answer B is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Answer D is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

 

Question 18

For Overlay, which statement is accurate?

1. A model in which policy is defined in a controller or management system and then distributed or enforced across network devices.
2. The physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.
3. A logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.
4. An interface through which a controller communicates with and programs network devices or infrastructure.

Correct Answer: C

 

Correct Answer

Answer C is correct because the selected answer describes a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

Incorrect Answers

Answer A is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer B is incorrect because the “Underlay” option describes a different concept: the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Answer D is incorrect because the “Southbound API” option describes a different concept: an interface through which a controller communicates with and programs network devices or infrastructure.

 

Question 19

For Fabric, which statement is accurate?

1. The network function that learns topology and builds forwarding decisions, routing information, or policy state.
2. The network function that forwards packets or frames according to installed forwarding information.
3. An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.
4. A centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

Correct Answer: C

 

Correct Answer

Answer C is correct because it accurately defines Fabric. The matching definition is: An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Incorrect Answers

Answer A is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

Answer B is incorrect because the “Data plane” option describes a different concept: the network function that forwards packets or frames according to installed forwarding information.

Answer D is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

 

Question 20

For Centralized policy, which statement is accurate?

1. A model in which policy is defined in a controller or management system and then distributed or enforced across network devices.
2. The network function that forwards packets or frames according to installed forwarding information.
3. An interface through which applications communicate with a controller to request information or network behavior.
4. An interface through which a controller communicates with and programs network devices or infrastructure.

Correct Answer: A

 

Correct Answer

Answer A is correct because the choice accurately describes Centralized policy: A model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Incorrect Answers

Answer B is incorrect because the “Data plane” option describes a different concept: the network function that forwards packets or frames according to installed forwarding information.

Answer C is incorrect because the “Northbound API” option describes a different concept: an interface through which applications communicate with a controller to request information or network behavior.

Answer D is incorrect because the “Southbound API” option describes a different concept: an interface through which a controller communicates with and programs network devices or infrastructure.

 

Question 21

While working on an API integration project, an administrator encounters this requirement: The network function that learns topology and builds forwarding decisions, routing information, or policy state. Which answer is the most precise match?

1. Controller
2. Control plane
3. Southbound API
4. Fabric

Correct Answer: B

 

Correct Answer

Answer B is correct because Control plane is the most precise fit for the stated requirement. The network function that learns topology and builds forwarding decisions, routing information, or policy state.

Incorrect Answers

Answer A is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

Answer C is incorrect because the “Southbound API” option describes a different concept: an interface through which a controller communicates with and programs network devices or infrastructure.

Answer D is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

 

Question 22

In a controller-based design review, the team must identify the technology that provides the following function: The network function that forwards packets or frames according to installed forwarding information. Which option should be selected?

1. Centralized policy
2. Southbound API
3. Fabric
4. Data plane

Correct Answer: D

 

Correct Answer

Answer D is correct because the scenario is describing the role of Data plane. The network function that forwards packets or frames according to installed forwarding information.

Incorrect Answers

Answer A is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer B is incorrect because the “Southbound API” option describes a different concept: an interface through which a controller communicates with and programs network devices or infrastructure.

Answer C is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

 

Question 23

An engineer separates device configuration and monitoring functions from route calculation and packet forwarding. Which plane contains the configuration and monitoring functions?

1. Fabric
2. Management plane
3. Centralized policy
4. Controller

Correct Answer: B

 

Correct Answer

Answer B is correct because Management plane directly provides the function required by the scenario. The functions and protocols used to configure, monitor, and administer network devices.

Incorrect Answers

Answer A is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Answer C is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer D is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

 

Question 24

During an operations automation assessment, the design calls for the following capability: A centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure. Which option names that capability most accurately?

1. Control plane
2. Management plane
3. Controller
4. Centralized policy

Correct Answer: C

 

Correct Answer

Answer C is correct because the operational requirement in the stem maps to Controller: A centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

Incorrect Answers

Answer A is incorrect because the “Control plane” option describes a different concept: the network function that learns topology and builds forwarding decisions, routing information, or policy state.

Answer B is incorrect because the “Management plane” option describes a different concept: the functions and protocols used to configure, monitor, and administer network devices.

Answer D is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

 

Question 25

A controller programs the network infrastructure through an interface facing managed devices. Which API direction describes that interface?

1. Centralized policy
2. Southbound API
3. Northbound API
4. Data plane

Correct Answer: B

 

Correct Answer

Answer B is correct because Southbound API is the most precise fit for the stated requirement. An interface through which a controller communicates with and programs network devices or infrastructure.

Incorrect Answers

Answer A is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer C is incorrect because the “Northbound API” option describes a different concept: an interface through which applications communicate with a controller to request information or network behavior.

Answer D is incorrect because the “Data plane” option describes a different concept: the network function that forwards packets or frames according to installed forwarding information.

 

Question 26

While working on an API integration project, an administrator encounters this requirement: An interface through which applications communicate with a controller to request information or network behavior. Which answer is the most precise match?

1. Southbound API
2. Fabric
3. Controller
4. Northbound API

Correct Answer: D

 

Correct Answer

Answer D is correct because the scenario is describing the role of Northbound API. An interface through which applications communicate with a controller to request information or network behavior.

Incorrect Answers

Answer A is incorrect because the “Southbound API” option describes a different concept: an interface through which a controller communicates with and programs network devices or infrastructure.

Answer B is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Answer C is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.

 

Question 27

In a controller-based design review, the team must identify the technology that provides the following function: The physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric. Which option should be selected?

1. Underlay
2. Fabric
3. Southbound API
4. Overlay

Correct Answer: A

 

Correct Answer

Answer A is correct because Underlay directly provides the function required by the scenario. The physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Incorrect Answers

Answer B is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Answer C is incorrect because the “Southbound API” option describes a different concept: an interface through which a controller communicates with and programs network devices or infrastructure.

Answer D is incorrect because the “Overlay” option describes a different concept: a logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

 

Question 28

A design uses tunnels to create virtual connectivity over an existing physical transport network. What is the logical network built above the transport called?

1. Southbound API
2. Overlay
3. Centralized policy
4. Fabric

Correct Answer: B

 

Correct Answer

Answer B is correct because the operational requirement in the stem maps to Overlay: A logical network built on top of an underlay, often using tunnels to provide virtual connectivity or segmentation.

Incorrect Answers

Answer A is incorrect because the “Southbound API” option describes a different concept: an interface through which a controller communicates with and programs network devices or infrastructure.

Answer C is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer D is incorrect because the “Fabric” option describes a different concept: an integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

 

Question 29

During an operations automation assessment, the design calls for the following capability: An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services. Which option names that capability most accurately?

1. Underlay
2. Centralized policy
3. Fabric
4. Management plane

Correct Answer: C

 

Correct Answer

Answer C is correct because Fabric is the most precise fit for the stated requirement. An integrated network domain in which control and policy are coordinated to provide consistent connectivity and services.

Incorrect Answers

Answer A is incorrect because the “Underlay” option describes a different concept: the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Answer B is incorrect because the “Centralized policy” option describes a different concept: a model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Answer D is incorrect because the “Management plane” option describes a different concept: the functions and protocols used to configure, monitor, and administer network devices.

 

Question 30

An administrator defines a policy once in a controller, which distributes it for enforcement on multiple devices. Which policy model is being used?

1. Centralized policy
2. Underlay
3. Management plane
4. Controller

Correct Answer: A

 

Correct Answer

Answer A is correct because the scenario is describing the role of Centralized policy. A model in which policy is defined in a controller or management system and then distributed or enforced across network devices.

Incorrect Answers

Answer B is incorrect because the “Underlay” option describes a different concept: the physical IP transport network that provides basic reachability beneath an overlay or software-defined fabric.

Answer C is incorrect because the “Management plane” option describes a different concept: the functions and protocols used to configure, monitor, and administer network devices.

Answer D is incorrect because the “Controller” option describes a different concept: a centralized or logically centralized system that provides policy, control, automation, or management functions to network infrastructure.