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Exam 300-420 topic 1 question 96 discussion

Actual exam question from Cisco's 300-420
Question #: 96
Topic #: 1
[All 300-420 Questions]

How is redundancy achieved among Cisco vBond Orchestrators in a Cisco SD-WAN deployment?

  • A. The IP addresses of all Orchestrators are mapped to a single DNS name.
  • B. The closest Orchestrator to each Cisco WAN Edge router is selected.
  • C. Cisco WAN Edge routers are configured with all Orchestrators using their IP addresses and priority.
  • D. A single Cisco Orchestrator is deployed in each network.
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Suggested Answer: A 🗳️
Reference:
https://www.cisco.com/c/dam/en/us/solutions/collateral/enterprise-networks/sd-wan/nb-06-cisco-sd-wan-ebook-cte-en.pdf page 25
by bccabrera at May 22, 2023, 12:47 p.m.

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bccabrera
5 months, 3 weeks ago
Selected Answer: A
A highly available Cisco SD-WAN network has multiple vBond controllers working in an active/active manner, preferably deployed at different on-prem geographic locations or cloud regions. Then each SD-WAN device references the vBond orchestrator by a single FQDN name in its system configuration, as shown in the output below. system vbond vbond.xyz.com ! At the DNS layer, the organization associates multiple IP addresses with the vBond's DNS name. Generally, when an SD-WAN device queries the DNS server, the server sends back the IP addresses of all vBond orchestrators. Then the device tries each IP in succession, with the first one determined by a hash function until it establishes a successful connection. https://www.networkacademy.io/ccie-enterprise/sdwan/high-availability
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