350-501 Automation and Quality of Services Practice Question
An SP uses NSO to orchestrate MPLS L3VPN services. The service model is written in YANG, and the NED communicates with the PE routers. Which protocol does NSO use to push configuration to the network devices?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
NETCONF
NSO can use NETCONF or RESTCONF southbound to communicate with network devices. NETCONF is the standard for configuration management.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
CLI
Why it's wrong here
NSO can use CLI via NEDs, but the standard protocol is NETCONF.
- ✗
PCEP
Why it's wrong here
PCEP is for path computation, not device configuration.
- ✗
SNMP
Why it's wrong here
SNMP is primarily for monitoring, not configuration.
- ✓
NETCONF
Why this is correct
NSO uses NETCONF for device configuration and management.
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