Question 1mediummulti select
Full question →mediummulti selectObjective-mapped
Which two statements accurately describe controller-based networking?
Answer choices
Why each option matters
Good practice is not just finding the correct option. The wrong answers often show the exact trap the exam wants you to fall into.
A
Best answer
It can centralize management and policy decisions.
This is correct because centralization is one of the main features of controller-based networking.
B
Best answer
It commonly exposes APIs for software and automation tools to interact with the controller.
This is correct because programmability is a major part of controller-based designs.
C
Distractor review
It eliminates the need for network devices such as switches and routers.
This is wrong because forwarding devices still exist and still matter.
D
Distractor review
It removes the need for authentication and authorization.
This is wrong because secure controller access still requires access controls.
E
Distractor review
It works only on wireless networks.
This is wrong because controller-based models are not limited to wireless environments.
Common exam trap
Common exam trap: answer the scenario, not the keyword
A common exam trap is to incorrectly believe that controller-based networking eliminates the need for physical network devices like switches and routers. Some candidates assume the controller replaces all hardware, which is false because forwarding devices remain essential for data traffic. Another trap is thinking that controller-based networking removes the need for authentication and authorization; however, secure access controls to the controller are still mandatory. These misconceptions can lead to selecting incorrect answers that overstate the controller’s role or ignore security requirements.
Technical deep dive
How to think about this question
Controller-based networking centralizes network management by using a dedicated controller device or software platform to oversee and enforce policies across multiple network devices such as switches and routers. This architecture separates the control plane from the data plane, allowing the controller to make centralized decisions about routing, security, and configuration, while the network devices handle packet forwarding. This approach simplifies network operations and enables consistent policy enforcement across the entire network. The controller exposes APIs (Application Programming Interfaces) that allow external software and automation tools to interact programmatically with the network. These APIs enable network administrators and developers to automate configuration changes, monitor network health, and integrate network management with other IT systems. This programmability is a key feature of modern controller-based networks, supporting automation and programmability domains within the CCNA 200-301 syllabus. A common exam trap is to assume that controller-based networking removes the need for physical network devices or security controls. In reality, switches and routers remain essential for forwarding traffic, and authentication and authorization mechanisms are still required to secure access to the controller. Understanding that the controller centralizes management but does not replace hardware or security is critical for correctly answering related CCNA questions.
KKey Concepts to Remember
- Controller-based networking centralizes management and policy decisions by separating the control plane from the data plane across network devices.
- The controller uses APIs to expose programmability, enabling automation tools to configure and monitor the network efficiently.
- Network devices such as switches and routers continue to forward traffic; the controller does not replace these physical devices.
- Authentication and authorization remain necessary to secure access to the controller and prevent unauthorized network changes.
- Controller-based networking supports consistent policy enforcement across wired and wireless network environments.
- APIs in controller-based networks facilitate integration with external software, enhancing network programmability and automation.
- Centralized control in controller-based networking reduces configuration complexity and improves network scalability and troubleshooting.
- The separation of control and data planes in controller-based networking enables dynamic network adjustments without manual device-by-device configuration.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Related practice questions
Related 200-301 practice-question pages
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
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More questions from this exam
Keep practising from the same exam bank, or move into a focused topic page if this question exposed a weak area.
Question 1
A router learns the same prefix from both OSPF and EIGRP. Which route is installed by default?
Question 2
A router shows this output: R1#show ip ospf neighbor Neighbor ID Pri State Dead Time Address Interface 10.1.1.2 1 FULL/DR 00:00:34 192.168.12.2 GigabitEthernet0/0 10.1.1.3 1 2WAY/DROTHER 00:00:39 192.168.12.3 GigabitEthernet0/0 Which statement is correct?
Question 3
What is the OSPF metric called?
Question 4
A non-root switch has two uplinks toward the root bridge. One path has a lower total STP cost than the other. What role will the lower-cost uplink have?
Question 5
A router interface applies this ACL inbound: 10 deny tcp any any eq 80 20 permit ip any any A user reports that web browsing to a server by IP address fails, but ping works. Which statement best explains the behavior?
Question 6
A router learns route 198.51.100.0/24 from OSPF with AD 110 and also has a static route to the same prefix configured with AD 150. Which route is installed?
FAQ
Questions learners often ask
What does this 200-301 question test?
Controller-based networking centralizes management and policy decisions by separating the control plane from the data plane across network devices.
What is the correct answer to this question?
The correct answer is: It can centralize management and policy decisions. — Controller-based networking centralizes certain management and policy functions and commonly exposes APIs for software interaction. In practical terms, the controller becomes the coordination point while outside applications or automation tools can talk to it through structured interfaces. This does not eliminate the need for actual forwarding devices, but it changes how the network is managed. The wrong answers usually go too far and pretend the controller replaces everything. The two correct answers are the ones that keep centralization and programmability as the core ideas.
What should I do if I get this 200-301 question wrong?
Then try more questions from the same exam bank and focus on understanding why the wrong options are tempting.
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