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Exam 200-301 topic 1 question 774 discussion

Actual exam question from Cisco's 200-301
Question #: 774
Topic #: 1
[All 200-301 Questions]

Which communication interaction takes place when a southbound API is used?

  • A. between the SDN controller and PCs on the network
  • B. between the SDN controller and switches and routers on the network
  • C. between the SDN controller and services and applications on the network
  • D. between network applications and switches and routers on the network
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Suggested Answer: B 🗳️
by kennie0 at May 23, 2023, 7:02 a.m.

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[Removed]
8 months, 2 weeks ago
Selected Answer: B
B is correct
upvoted 1 times
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HZY124
1 year, 2 months ago
Selected Answer: B
correct
upvoted 1 times
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[Removed]
1 year, 5 months ago
Selected Answer: B
Yes, between the SDN controller at the control plane and the data plane (routers and switches).
upvoted 1 times
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Zepar
1 year, 6 months ago
The communication interaction that takes place when a southbound API is used is B. between the SDN controller and switches and routers on the network. In a software-defined networking (SDN) architecture, the control plane is centralized in an SDN controller, which manages and controls the behavior of network devices such as switches and routers. The southbound API is the interface through which the SDN controller communicates with these network devices. When using the southbound API, the SDN controller sends instructions and configuration commands to the switches and routers in the network. These instructions can include actions like modifying forwarding tables, setting up flow rules, configuring quality of service (QoS) parameters, and more. The switches and routers, acting as the data plane, receive and process the instructions from the controller, implementing the desired network behavior. They forward traffic based on the rules and configurations received from the controller. Therefore, the correct answer is B. between the SDN controller and switches and routers on the network.
upvoted 4 times
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kennie0
1 year, 6 months ago
PC is a device too so why not A?
upvoted 4 times
fd17639
10 months, 3 weeks ago
Northbound API: Refers to communication between the SDN controller and higher-layer applications or services (e.g., services and applications on the network, as mentioned in option C). Southbound API: Refers to communication between the SDN controller and the lower-layer network infrastructure, such as switches and routers.
upvoted 2 times
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Community vote distribution
A (35%)
C (25%)
B (20%)
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