200-901 Understanding and Using APIs Practice Question
What is the correct URL path for retrieving the configuration of a network interface using RESTCONF on a Cisco device?
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
✓
/restconf/data/ietf-interfaces:interfaces
RESTCONF uses /restconf/data/ followed by the YANG module path. The standard path for interfaces is /restconf/data/ietf-interfaces:interfaces.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
/restconf/data/ietf-interfaces:interfaces
Why this is correct
The path `/restconf/data/ietf-interfaces:interfaces` satisfies RESTCONF's mandatory structure: the `/restconf/data` root, followed by the YANG module name (`ietf-interfaces`) and its container. This retrieves interface configuration from the Cisco device's datastore, matching the IETF standard model rather than a vendor-proprietary path.
- ✗
/restconf/data/interfaces
Why it's wrong here
RESTCONF requires the media type and resource path to follow the YANG module hierarchy, so /restconf/data/interfaces omits the module name and any interface identifier. It is tempting because it mirrors the familiar RESTCONF prefix, but the correct path includes the ietf-interfaces module and specific interface node.
- ✗
/api/restconf/data/interfaces
Why it's wrong here
The /api segment is not part of the RESTCONF specification; Cisco's RESTCONF endpoint begins at /restconf, so this path returns an error. It is tempting because /api appears in other Cisco programmatic interfaces, but RESTCONF mandates the standard /restconf/data prefix followed by the YANG module path.
- ✗
/restconf/operations/get-config
Why it's wrong here
RESTCONF retrieves configuration through the data resource, not an operations container; /restconf/operations invokes RPCs such as reset or clear. It is tempting because operations is a real RESTCONF path, and it is correct when calling a YANG-modelled action instead of reading interface configuration.
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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.