Which two device roles exist in a Cisco SD-Access fabric?
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Correct answer: edge node, border node.
Why this is the answer
In a Cisco SD-Access fabric, the two primary device roles are the edge node and the border node. An edge node (typically a switch) connects endpoints to the fabric and performs host onboarding, authentication, and policy enforcement. A border node (also a switch or router) connects the SD-Access fabric to external networks, such as the data center or the internet, and handles routing and policy enforcement for traffic entering or leaving the fabric. vBond controller is a component of Cisco SD-WAN, not SD-Access. Access switch and core switch are general networking terms that describe a device's position in a traditional network hierarchy, but they are not specific SD-Access fabric roles.
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