The correct answer is that model-driven telemetry uses a push model while SNMP primarily uses a pull model. This distinction is rooted in how each technology handles data collection: SNMP relies on a manager polling devices at intervals, which introduces CPU and network overhead that makes sub-second polling impractical, whereas model-driven telemetry (MDT) streams structured, YANG-modeled data directly from the device to a collector, enabling sub-second intervals for real-time monitoring. On the Cisco SPCOR / CCNP Service Provider Core 350-501 exam, this question tests your understanding of modern network monitoring paradigms, often appearing as a two-answer multiple-choice item where a common trap is confusing SNMP traps (a push exception) with SNMP’s primary pull behavior. Remember the memory tip: “SNMP pulls, MDT pushes—sub-second streams are the telemetry’s rush.”
350-501 Automation and Quality of Service Practice Question
This 350-501 practice question tests your understanding of automation and quality of service. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Which TWO statements about model-driven telemetry compared to SNMP are correct? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Model-driven telemetry can stream data at sub-second intervals.
Model-driven telemetry (MDT) uses a push model where the network device streams structured data (e.g., YANG-modeled) to a collector, enabling sub-second intervals for real-time monitoring. This contrasts with SNMP's pull model, where the manager polls the device at intervals limited by CPU and network overhead, making sub-second polling impractical.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
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Model-driven telemetry uses UDP for transport by default.
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that model-driven telemetry is purely event-driven, but it supports periodic streaming as a primary mode, and candidates confuse the transport protocol (UDP vs. TCP) because SNMP uses UDP by default.
Detailed technical explanation
How to think about this question
Model-driven telemetry leverages YANG models (e.g., from RFC 8344 for interfaces) and encoding like GPB or JSON over gRPC, allowing sub-second cadences (e.g., 100 ms) without the polling overhead of SNMP. Under the hood, the device pushes telemetry data via a persistent TCP connection, reducing CPU spikes and enabling near-real-time analytics for dynamic environments like SD-WAN or QoS monitoring.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 350-501 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Automation and Quality of Service — This question tests Automation and Quality of Service — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Model-driven telemetry can stream data at sub-second intervals. — Model-driven telemetry (MDT) uses a push model where the network device streams structured data (e.g., YANG-modeled) to a collector, enabling sub-second intervals for real-time monitoring. This contrasts with SNMP's pull model, where the manager polls the device at intervals limited by CPU and network overhead, making sub-second polling impractical.
What should I do if I get this 350-501 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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