350-401 · Question #954
What is a characteristic of Cisco SD-WAN?
The correct answer is D. operates over DTLS/TLS authenticated and secured tunnels. Cisco SD-WAN establishes secure communication between its components and devices by operating over DTLS/TLS authenticated and encrypted tunnels.
Question
Options
- Auses unique per-device feature templates
- Brequires manual secure tunnel configuration
- Cuses control plane connections between routers
- Doperates over DTLS/TLS authenticated and secured tunnels
How the community answered
(33 responses)- A6% (2)
- C3% (1)
- D91% (30)
Why each option
Cisco SD-WAN establishes secure communication between its components and devices by operating over DTLS/TLS authenticated and encrypted tunnels.
Cisco SD-WAN primarily uses templates to apply configurations consistently across multiple devices, promoting automation and standardization rather than unique per-device templates.
Cisco SD-WAN automates the establishment and configuration of secure IPsec/GRE tunnels, removing the need for manual setup.
While control plane connections exist, the key characteristic is that these connections are specifically secured and authenticated using DTLS/TLS, not just their existence.
Cisco SD-WAN utilizes DTLS (Datagram Transport Layer Security) for control plane connections and TLS (Transport Layer Security) for data plane connections, ensuring that all communication between the vManage, vSmart, vBond, and vEdge/cEdge devices is both authenticated and encrypted, providing robust security for the entire fabric.
Concept tested: Cisco SD-WAN security tunnel mechanisms
Source: https://www.cisco.com/c/en/us/products/collateral/routers/white-paper-c11-739502.html
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