Implementing and Operating Cisco Enterprise Network Core Technologies (ENCOR) v1.2ArchitectureHard
A global enterprise is expanding its network to include new international branch offices. The network team needs to connect these branches securely and efficiently to the corporate data centers and existing cloud resources, while optimizing traffic for latency-sensitive applications. The solution must provide flexible deployment options and centralized management across diverse WAN links. Which SD-WAN deployment model best fits these requirements?
- ACloud-hosted SD-WAN
- BOn-premises SD-WAN
- CHybrid SD-WAN
- DManaged SD-WAN Service
Show answer & explanationAnswer & explanation
Correct answer: C. Hybrid SD-WAN
A hybrid SD-WAN model combines on-premises SD-WAN deployments (for data centers) with cloud-hosted components or connections (for cloud resources and potentially branch connectivity). This provides the flexibility needed to connect diverse international branches, corporate data centers, and cloud resources, while leveraging centralized management and traffic optimization capabilities of SD-WAN.
Why the other options are wrong
- A. Cloud-hosted SD-WAN places controllers and potentially gateways in the cloud, well-suited for cloud-centric organizations but might not fully address on-premises data center integration or direct branch connectivity needs.
- B. On-premises SD-WAN primarily focuses on physical appliances at customer sites, which might not be ideal for direct cloud resource integration or flexible global deployments.
- D. Managed SD-WAN Service refers to a service provider managing the SD-WAN, not a deployment model describing the architectural placement of components.
Hybrid SD-WAN Deployment
An SD-WAN deployment model that integrates both on-premises and cloud-hosted components to connect diverse network segments, such as branches, data centers, and public cloud resources.
- Combines physical appliances with cloud gateways/controllers.
- Offers flexibility for heterogeneous environments.
- Optimizes connectivity to both on-premises and cloud applications.
Memory trick: Hybrid SD-WAN is the 'best of both worlds' for mixed environments.