300-420 · Question #64
What are two benefits of designing an SD-WAN network fabric with direct Internet access implemented at every site? (Choose two.)
The correct answer is A. It decreases latency to applications hosted by public cloud service provider. E. It alleviates network traffic on MPLS circuits. Implementing direct Internet access at every SD-WAN site significantly improves application performance for public cloud services and reduces traffic load on expensive MPLS circuits.
Question
What are two benefits of designing an SD-WAN network fabric with direct Internet access implemented at every site? (Choose two.)
Options
- AIt decreases latency to applications hosted by public cloud service provider.
- BIt decreases latency on Internet circuits.
- CIt increases the speed of delivery of site deployments through zero-touch provisioning.
- DIt increases the total available bandwidth on Internet circuits.
- EIt alleviates network traffic on MPLS circuits.
How the community answered
(51 responses)- A90% (46)
- B2% (1)
- C2% (1)
- D6% (3)
Why each option
Implementing direct Internet access at every SD-WAN site significantly improves application performance for public cloud services and reduces traffic load on expensive MPLS circuits.
Direct Internet Access (DIA) at every site allows branch offices to connect directly to public cloud service providers, eliminating the need to backhaul traffic to a central data center and thereby significantly decreasing latency for cloud-hosted applications.
Direct Internet Access helps optimize network paths and reduces overall latency by avoiding backhauling, but it does not inherently decrease latency *on* the Internet circuits themselves.
Zero-touch provisioning (ZTP) is a general benefit of SD-WAN for rapid deployment, and while important, it is not directly related to the specific benefits of direct Internet access implemented at every site.
While having multiple DIA links across an enterprise increases the *aggregate* Internet bandwidth capacity, it does not increase the available bandwidth of any single Internet circuit itself.
By directing Internet-bound traffic straight from the branch sites, the implementation of DIA alleviates congestion and reduces the load on core MPLS circuits, freeing up bandwidth for critical internal enterprise traffic.
Concept tested: SD-WAN Direct Internet Access benefits
Source: https://www.cisco.com/c/en/us/products/collateral/routers/wan-optimization/white-paper-c11-739063.html
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