1.8 Explain the Process of Planning for Interconnectivity and High Availability (HA) SD-WAN-ENGINEER Practice Questions (Page 2)

Questions 6–10

1. 6application · medium

   A service provider is designing SD-WAN for a customer with two large data centers. Each data center hosts active applications that must be reachable at all times. The customer wants to use both data centers efficiently and avoid idle capacity. Which HA architecture should the SD-WAN design use?

   • AActive/passive HA with one data center as primary and the other as standby.
   • BActive/active HA with both data centers handling traffic and automatic failover if one site becomes unavailable.
   • CNo HA; use a single data center and rely on WAN link redundancy.
   • DActive/passive HA with the standby site also running non-critical workloads.
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2. 7expert · hard

   A logistics company is planning SD-WAN for 200 delivery depots. Each depot has a primary fiber link and a backup 4G link. The company wants to minimize cost while ensuring that if the fiber link fails, the depot can still send tracking data to the central office. The tracking data is low-bandwidth and delay-tolerant. Which interconnectivity design is most cost-effective?

   • AUse only the fiber link and rely on the ISP's SLA for uptime.
   • BUse both links in active/active mode for all traffic to maximize bandwidth.
   • CUse the 4G link as primary to save cost, and keep the fiber link as backup.
   • DUse the fiber link as primary and the 4G link as backup, with automatic failover for all traffic.
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   What is the primary purpose of high availability (HA) in an SD-WAN deployment?

   • ATo ensure network services remain available during device or link failures
   • BTo simplify the initial configuration of SD-WAN devices
   • CTo increase the raw bandwidth available to a single site
   • DTo reduce the number of WAN links required at each site
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5. 9foundation · easy

   In which HA deployment model do both devices actively process traffic to provide load sharing and redundancy?

   • AStandalone
   • BActive/passive
   • CActive/active
   • DHub-and-spoke
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6. 10expert · hard · select all that apply

   A manufacturing company is planning SD-WAN for a new plant. The plant has two WAN links: a dedicated fiber link and a broadband cable link. The plant runs a real-time control system that requires low latency and high availability. The network team is evaluating HA and interconnectivity options. Which of the following should be included in the plan to ensure high availability? (Select all that apply.)

   • ADeploy two SD-WAN edge devices in active/passive HA with stateful failover.
   • BUse a single SD-WAN edge device with both WAN links connected to it.
   • CConfigure both WAN links in active/active mode to provide link redundancy and load balancing.
   • DRely on the ISP's SLA for both links to ensure uptime.
   • EImplement link monitoring to detect failures and trigger failover automatically.
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