Question 1mediummatching
Read the full network assurance explanation →Question 648 of 2,015
Quick Answer
The answer is periodic-and-on-change, which matches the trigger that combines both scheduled intervals and immediate event-driven updates. This is correct because streaming telemetry modes define how data is pushed from a network device to a collector: periodic sends data at fixed intervals regardless of state, on-change sends data only when a monitored value changes, and periodic-and-on-change merges both behaviors to ensure baseline updates while capturing critical state transitions. On the ENCOR 350-401 exam, this drag-and-drop task tests your ability to distinguish between the five modes—including target-defined, which leaves timing to the device, and on-change-with-policy, which adds conditional thresholds. A common trap is confusing periodic-and-on-change with on-change alone, but remember that the combined mode guarantees regular snapshots even without changes. For a memory tip, think of it as “scheduled check-ins plus instant alerts,” or simply recall the mnemonic “POC” for Periodic, On-change, Combined.
350-401 Model-Driven Telemetry Practice Question
This 350-401 practice question tests your understanding of model-driven telemetry. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Drag and drop each streaming telemetry mode on the left to its matching trigger on the right.
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
✓
periodic: Data is sent at a fixed interval
Periodic sends at intervals, on-change sends on value change, target-defined leaves timing to the device, on-change-with-policy adds conditions, and periodic-and-on-change combines both.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 350-401 NAT questions on configuration and troubleshooting.
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Model-Driven Telemetry — study guide chapter
Learn the concepts, then practise the questions
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Model-Driven Telemetry practice questions
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FAQ
Questions learners often ask
What does this 350-401 question test?
Model-Driven Telemetry — This question tests Model-Driven Telemetry — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: periodic: Data is sent at a fixed interval — Periodic sends at intervals, on-change sends on value change, target-defined leaves timing to the device, on-change-with-policy adds conditions, and periodic-and-on-change combines both.
What should I do if I get this 350-401 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 350-401 NAT questions on configuration and troubleshooting.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Same concept, more angles
1 more ways this is tested on 350-401
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. Drag and drop each streaming telemetry mode on the left to its matching trigger on the right.
medium- ✓ P1.periodic: data is sent at a fixed interval
- ✓ P2.on-change: data is sent when a monitored value changes
- ✓ P3.target-defined: device determines when to send updates
- ✓ P4.suppress-redundant: skip sending if value unchanged
- ✓ P5.heartbeat-interval: periodic keep-alive even if no change
Why P1: Periodic sends data at fixed intervals, on-change sends data when a value changes, and target-defined uses the device's own update policy.
Last reviewed: Jun 18, 2026
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