200-901 Understanding and Using APIs Practice Question
An IoT device streams telemetry data to a collector using gNMI. Which mode allows the collector to initiate the subscription?
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
✓
Dial-in mode
In dial-in mode, the collector (client) initiates the gNMI subscription to the device (server).
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
gRPC streaming
Why it's wrong here
gRPC streaming is a broader term.
- ✓
Dial-in mode
Why this is correct
Dial-in is collector-initiated.
- ✗
Dial-out mode
Why it's wrong here
Dial-out is device-initiated.
- ✗
NETCONF telemetry
Why it's wrong here
NETCONF is not gNMI.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-901 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 200-901 exam.