Quick Answer
The answer is YANG data models, a telemetry receiver, and dial-out (gRPC) configuration. These three components are required for model-driven telemetry with gRPC because YANG defines the structure and semantics of the data being streamed, acting as the schema language that gRPC encodes into Protocol Buffers or JSON, while the telemetry receiver is the destination that parses and interprets this structured data, and dial-out enables the network device to proactively push telemetry updates to the receiver without polling. On the Cisco SPCOR 350-501 exam, this question tests your understanding of gRPC telemetry required components within the broader model-driven telemetry framework, often appearing as a multi-select item where a common trap is confusing dial-in (pull) with dial-out (push) or omitting YANG as the schema foundation. A useful memory tip is to think of the three as “Schema, Sink, and Send”—YANG provides the schema, the receiver is the sink, and dial-out is the send mechanism.
This 350-501 practice question tests your understanding of automation and assurance. 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 THREE components are required for model-driven telemetry with gRPC? (Choose three.)
SNMP trap receiver
Why wrong: SNMP traps are not part of gRPC telemetry.
NETCONF session
Why wrong: gRPC telemetry does not use NETCONF.
YANG data model
Defines the data to be streamed.
gRPC dial-out from the network device
Device pushes data to the receiver.
Telemetry receiver
Collects the streamed data.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
YANG data model
YANG data models (C) are required because they define the structure and semantics of the telemetry data being streamed. gRPC uses YANG as its schema language to encode data in Protocol Buffers (protobuf) or JSON format, ensuring the receiver can parse and interpret the telemetry information correctly.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
SNMP trap receiver
Why it's wrong here
SNMP traps are not part of gRPC telemetry.
NETCONF session
Why it's wrong here
gRPC telemetry does not use NETCONF.
YANG data model
Why this is correct
Defines the data to be streamed.
Related concept
Read the scenario before looking for a memorised answer.
gRPC dial-out from the network device
Why this is correct
Device pushes data to the receiver.
Related concept
Read the scenario before looking for a memorised answer.
Telemetry receiver
Why this is correct
Collects the streamed data.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Cisco often tests the distinction between dial-in (NETCONF/RESTCONF) and dial-out (gRPC) telemetry, and candidates mistakenly think a NETCONF session or SNMP trap is part of the gRPC telemetry stack, but they are separate protocols with different transport and data models.
Detailed technical explanation
Model-driven telemetry with gRPC relies on a dial-out architecture where the network device (gRPC client) initiates a persistent TCP connection to a telemetry receiver (gRPC server) and streams data encoded using protobuf, which is defined by YANG models. The gRPC dial-out (D) is the transport mechanism, and the telemetry receiver (E) is the destination that collects and processes the streamed data; without all three (C, D, E), the telemetry pipeline cannot function.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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Automation and Assurance — study guide chapter
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FAQ
Automation and Assurance — This question tests Automation and Assurance — Read the scenario before looking for a memorised answer..
The correct answer is: YANG data model — YANG data models (C) are required because they define the structure and semantics of the telemetry data being streamed. gRPC uses YANG as its schema language to encode data in Protocol Buffers (protobuf) or JSON format, ensuring the receiver can parse and interpret the telemetry information correctly.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This 350-501 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 350-501 exam.
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