200-901 Understanding and Using APIs Practice Question
What is the purpose of the 'Authorization' header in a REST API 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
✓
To authenticate the client
The Authorization header carries credentials (e.g., Bearer token, Basic auth) to authenticate the client. Content-Type specifies body format. Accept specifies response format.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
To enable caching of the response
Why it's wrong here
Caching is controlled by Cache-Control headers.
- ✓
To authenticate the client
Why this is correct
Authorization header carries authentication credentials.
- ✗
To specify the desired response format
Why it's wrong here
That is the purpose of the Accept header.
- ✗
To specify the format of the request body
Why it's wrong here
That is the purpose of Content-Type.
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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.