300-415 Question #355: Real Exam Question with Answer & Explanation

The correct answer is C: fully qualified domain name. In a vBond Orchestrator redundancy topology, a Fully Qualified Domain Name (FQDN) is the key element that allows multiple vBond instances to be referenced by a single resolvable name for high availability.

Controller Deployment

Question

What is a key element used in a vBond Orchestrator redundancy topology?

Options

Aload-balancer with health probes
BDHCP server
Cfully qualified domain name
Dstun server

Explanation

In a vBond Orchestrator redundancy topology, a Fully Qualified Domain Name (FQDN) is the key element that allows multiple vBond instances to be referenced by a single resolvable name for high availability.

Common mistakes.

A. A load balancer with health probes is not a standard or required element in Cisco SD-WAN vBond redundancy; DNS-based resolution via FQDN serves this purpose natively.
B. A DHCP server is used for dynamic IP address assignment and is not a key element of the vBond orchestrator redundancy topology.
D. A STUN server is a function that vBond itself provides for NAT traversal, but it is not the key element that enables vBond redundancy across multiple controller instances.

Concept tested. vBond Orchestrator redundancy using FQDN

Reference. https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/system-interface/vedge-20-x/systems-interfaces-book/system-interface.html

Topics

#vBond Orchestrator#Redundancy#High Availability#FQDN

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