hardMultiple ChoiceObjective-mapped
CCNP Practice Question: Is implementing model-driven telemetry on a Cisco…
A network engineer is implementing model-driven telemetry on a Cisco Nexus 9000 switch to monitor VLAN and STP changes. The engineer wants to use the native telemetry protocol with UDP as the transport. After configuring the telemetry subscription with the 'destination-group' and 'sensor-group', the engineer notices that the collector is not receiving any data. The collector is reachable and the UDP port is open. What is the most likely missing configuration?
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
✓
The engineer did not create a 'policy' that binds the sensor-group and destination-group
That the engineer must configure a 'policy' that associates the sensor-group with the destination-group and commits the configuration. On Nexus switches, model-driven telemetry requires a policy to bind the sensor and destination groups. The other options are incorrect because the source-interface is optional; the YANG models are correct; and the encoding is not the issue.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The engineer forgot to configure a 'source-interface' under the destination-group
Why it's wrong here
A source-interface is recommended but not mandatory; the switch will use the management interface by default.
- ✓
The engineer did not create a 'policy' that binds the sensor-group and destination-group
Why this is correct
On Nexus, a telemetry policy is required to link the sensor and destination groups; without it, no data is streamed.
- ✗
The YANG models for VLAN and STP are not supported in the native telemetry protocol
Why it's wrong here
Nexus supports YANG models for VLAN and STP in the native telemetry protocol.
- ✗
The engineer used GPB encoding instead of JSON, and the collector only accepts JSON
Why it's wrong here
Encoding mismatch would cause parsing issues, but the collector would still receive data; the issue is that no data is received at all.
Visual reference
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.