Which third‑party Enterprise CA must be used for a cloud-based vSmart controller?
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Correct answer: RootCert.
Why this is the answer
For cloud-based vSmart controllers in Cisco SD-WAN, you must use a third-party Enterprise CA. RootCert is the specific third-party Enterprise CA that Cisco supports and requires for this deployment model. VeriSign and Microsoft are general Certificate Authorities but are not the designated CA for cloud-based vSmart controllers in Cisco SD-WAN. RADIUS is an authentication, authorization, and accounting protocol, not a Certificate Authority. Therefore, RootCert is the only correct option for a cloud-based vSmart controller's CA.
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