The correct answer is that this configuration sends interface statistics every 500 seconds to the receiver at 10.10.10.10 port 50001 using gRPC. This is because the `update-policy periodic 500` directive defines a 500-second interval for pushing data, while the `filter xpath /interfaces/interface/statistics` narrows the telemetry subscription to interface-level statistics, and the `receiver` line specifies the destination IP, port, and protocol (gRPC over TCP). On the ENCOR 350-401 exam, this question tests your ability to parse IOS-XE telemetry subscription syntax, particularly distinguishing between periodic and on-change update policies. A common trap is confusing the `periodic` value as milliseconds or misreading the receiver port as a local listening port; remember that gRPC dial-out pushes data to an external collector. Memory tip: think of "500 seconds" as the push interval—like a timer that fires every 500 ticks—and note that `encode-kvgpb` uses key-value Google Protocol Buffers for efficient data transport.
350-401 Ansible Automation Practice Question
This 350-401 practice question tests your understanding of ansible automation. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A telemetry subscription is configured on a Cisco IOS-XE device using gRPC dial-out:
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
It sends interface statistics every 500 seconds to the receiver at 10.10.10.10 port 50001 using gRPC.
The subscription pushes interface statistics every 500 seconds to a receiver at 10.10.10.10:50001 using gRPC over TCP. The correct answer correctly describes the behavior.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
It sends interface statistics every 500 milliseconds to the receiver using gRPC.
Why it's wrong here
The update-policy is periodic 500, which is in seconds, not milliseconds.
✓
It sends interface statistics every 500 seconds to the receiver at 10.10.10.10 port 50001 using gRPC.
Why this is correct
The periodic value is in seconds; the receiver is correctly specified.
Related concept
Static NAT maps one inside address to one outside address.
✗
It sends configuration changes for interfaces to the receiver using gRPC.
Why it's wrong here
The filter is for statistics, not configuration; it is a push model.
✗
It sends interface statistics only when there is a change, using a push model.
Why it's wrong here
The update-policy is periodic, not on-change.
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.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this 350-401 question in full detail.
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.
Ansible Automation — This question tests Ansible Automation — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: It sends interface statistics every 500 seconds to the receiver at 10.10.10.10 port 50001 using gRPC. — The subscription pushes interface statistics every 500 seconds to a receiver at 10.10.10.10:50001 using gRPC over TCP. The correct answer correctly describes the behavior.
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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