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200-901 Infrastructure and Automation Practice Question

A Cisco DevNet engineer is configuring model-driven telemetry on a Cisco IOS-XE device. The telemetry subscription includes the following path: 'Cisco-IOS-XE-native:native/interface/GigabitEthernet[Name='1/0/1']/ip/address'. Which part of this path identifies a specific list instance?

⚠ Common exam trap

Cisco often tests whether candidates confuse the YANG module name or the list node name with the list instance identifier, leading them to pick the module or the list name instead of the key predicate.

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

[Name='1/0/1']

The XPath expression `[Name='1/0/1']` is a predicate filter that selects a specific list instance from the `GigabitEthernet` YANG list. In YANG model-driven telemetry, list keys are used to identify individual entries, and the predicate syntax `[key='value']` pinpoints exactly one instance within the list.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • Cisco-IOS-XE-native

    Why it's wrong here

    This is the module namespace, not a list instance.

  • [Name='1/0/1']

    Why this is correct

    This specifies the key value to identify the particular interface instance.

  • GigabitEthernet

    Why it's wrong here

    This is the list node name, not the instance.

  • ip/address

    Why it's wrong here

    This is a leaf path under the instance, not the instance identifier.

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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.