200-901 Understanding and Using APIs Practice Question
What is the correct Content-Type header value for a RESTCONF request using JSON encoding?
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 and application/yang-data+xml for XML. application/json is not specific to 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/yang-data+json
Why this is correct
Defined in RFC 8040 for RESTCONF JSON encoding.
- ✗
application/json
Why it's wrong here
Not the correct media type for RESTCONF; it should be yand-data+json.
- ✗
text/json
Why it's wrong here
Invalid media type.
- ✗
application/xml
Why it's wrong here
For XML, but JSON is specified.
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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.