300-415 · Question #58
Which two services are critical for zero touch provisioning on-boarding? (Choose two.)
The correct answer is D. DHCP E. DNS. Zero Touch Provisioning relies on DHCP to assign an initial IP address and DNS to resolve controller hostnames so new devices can automatically locate and contact the SD-WAN controllers.
Question
Exhibit
Options
- AEMAIL
- BSNMP
- CAAA
- DDHCP
- EDNS
How the community answered
(48 responses)- A2% (1)
- B6% (3)
- C2% (1)
- D90% (43)
Why each option
Zero Touch Provisioning relies on DHCP to assign an initial IP address and DNS to resolve controller hostnames so new devices can automatically locate and contact the SD-WAN controllers.
Email is a notification protocol and plays no functional role in the automated ZTP device onboarding process.
SNMP is a network monitoring protocol and is not part of the ZTP bootstrapping workflow.
AAA is used for authentication after a device is already onboarded; it is not a prerequisite service for the ZTP onboarding mechanism itself.
DHCP is critical for ZTP because a new device with no configuration needs an IP address automatically assigned before it can communicate with any controller.
DNS is critical for ZTP because the device uses DNS to resolve the FQDN of the vBond orchestrator, which is the first controller it must contact to begin the onboarding process.
Concept tested: Zero Touch Provisioning required network services
Source: https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/get-started.html
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