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350-401 · Question #1227
350-401 Question #1227: Real Exam Question with Answer & Explanation
The correct answer is B: northbound API. vManage, the centralized controller for Cisco SD-WAN, provides a northbound API for external systems to programmatically interact with and manage the SD-WAN fabric.
Submitted by weili_xi· Mar 6, 2026Network Architecture
Question
What is used by vManage to interact with Cisco SD-WAN devices in the fabric?
Options
- AIPsec
- Bnorthbound API
- CRESTCONF
- Dsouthbound API
Explanation
vManage, the centralized controller for Cisco SD-WAN, provides a northbound API for external systems to programmatically interact with and manage the SD-WAN fabric.
Common mistakes.
- A. IPsec is a security protocol used for creating secure tunnels over IP networks, primarily for data plane encryption, not an API for vManage interaction.
- C. RESTCONF is a protocol for accessing NETCONF-like data over HTTP, which vManage might use internally or expose as part of an API, but 'northbound API' is the broader category for external interaction.
- D. Southbound APIs are used by vManage to communicate with and control the underlying network devices (vEdge/cEdge routers, vSmart, vBond controllers) within the SD-WAN fabric, rather than for external interaction with vManage itself.
Concept tested. Cisco SD-WAN vManage APIs
Reference. https://developer.cisco.com/docs/sdwan/#!rest-api-overview/rest-api-overview
Topics
#Cisco SD-WAN#vManage#Northbound API#SD-WAN architecture
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