200-901 Understanding and Using APIs Practice Question
A developer uses RESTCONF to configure a network device. What is the correct content-type header to send in the request?
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
✓
application/yang-data+json
RESTCONF uses application/yang-data+json for JSON encoding of YANG data.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
application/json
Why it's wrong here
While similar, the specific media type is application/yang-data+json.
- ✗
application/xml
Why it's wrong here
XML is also possible but the question implies JSON; the correct type is application/yang-data+json.
- ✓
application/yang-data+json
Why this is correct
This is the standard media type for RESTCONF with JSON.
- ✗
text/plain
Why it's wrong here
Not used for structured data.
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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.