This 350-401 practice question tests your understanding of rest apis and data models. 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.
An engineer configures model-driven telemetry on a Cisco IOS-XE device with the following gRPC dial-out configuration:
``` telemetry ietf subscription 101 encoding encode-kvgpb filter xpath /interfaces/interface/state/counters source-address 10.1.1.1 stream yang-push update-policy periodic 500 receiver ip address 10.2.2.2 50001 protocol grpc-tcp ```
What is the purpose of the 'encoding encode-kvgpb' command?
It sets the encoding to JSON format for human readability.
Why wrong: KV-GPB is not JSON; it is a binary format.
It specifies that the data should be encoded using the Key-Value Google Protocol Buffers format.
KV-GPB is a binary encoding used for telemetry data.
It enables compression of the telemetry data.
Why wrong: Encoding does not imply compression.
It sets the encoding to XML format.
Why wrong: KV-GPB is not XML.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
It specifies that the data should be encoded using the Key-Value Google Protocol Buffers format.
The 'encoding encode-kvgpb' command specifies that the telemetry data should be encoded using the Key-Value Google Protocol Buffers (KV-GPB) format, which is a compact binary encoding used for efficient data transmission.
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
For each option: why learners choose it and why it is or isn't the right answer here.
It sets the encoding to JSON format for human readability.
Why it's wrong here
KV-GPB is not JSON; it is a binary format.
It specifies that the data should be encoded using the Key-Value Google Protocol Buffers format.
Why this is correct
KV-GPB is a binary encoding used for telemetry data.
Related concept
Static NAT maps one inside address to one outside address.
It enables compression of the telemetry data.
Why it's wrong here
Encoding does not imply compression.
It sets the encoding to XML format.
Why it's wrong here
KV-GPB is not XML.
Common exam traps
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
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.
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
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
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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FAQ
REST APIs and Data Models — This question tests REST APIs and Data Models — Static NAT maps one inside address to one outside address..
The correct answer is: It specifies that the data should be encoded using the Key-Value Google Protocol Buffers format. — The 'encoding encode-kvgpb' command specifies that the telemetry data should be encoded using the Key-Value Google Protocol Buffers (KV-GPB) format, which is a compact binary encoding used for efficient data transmission.
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.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 18, 2026
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