200-901 Infrastructure and Automation Practice Question
Exhibit
Refer to the exhibit. telemetry ietf subscription 101 encoding encode-kvgpb filter xpath /interfaces/interface[name='GigabitEthernet1']/oper-status source-address 10.1.1.1 stream yang-push update-policy periodic 500
Based on the exhibit, what is the frequency of the telemetry subscription?
⚠ Common exam trap
Cisco often tests the unit of the 'period' value, and the trap here is that candidates assume the value is in seconds (like many other network timers) instead of milliseconds, leading them to choose 'Every 500 seconds'.
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
✓
Every 500 milliseconds
The exhibit shows a telemetry subscription with a 'period' of 500, which in Cisco model-driven telemetry (MDT) is expressed in milliseconds. Therefore, the frequency is every 500 milliseconds, making option B correct.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Every 500 seconds
Why it's wrong here
The exhibit's subscription interval is expressed in centiseconds, so 500 seconds misreads the unit by two orders of magnitude. This would be right if the period field were configured in seconds, which the telemetry schema does not use.
- ✓
Every 500 milliseconds
Why this is correct
The subscription's sample interval field in the exhibit specifies 500 milliseconds, so telemetry is pushed at that cadence. Frequency is determined by the configured period value, not by transport protocol or encoding, making 500 milliseconds the correct reading.
- ✗
When the management connection is re-established
Why it's wrong here
Re-establishing the management connection is a trigger event, not a subscription cadence; the exhibit specifies a periodic interval for telemetry delivery. This would fit a dial-on-demand or event-driven subscription, where updates flow only when the session state changes.
- ✗
On-change only
Why it's wrong here
On-change only reports when a monitored value alters, so it cannot express a periodic reporting frequency; the exhibit's interval setting is what defines cadence. It is tempting because on-change subscriptions suit event-driven dashboards where updates should fire only on state transitions, not on a fixed schedule.
About these practice questions
One of 975 original 200-901 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-901 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 200-901 exam.