200-901 Understanding and Using APIs Practice Question
What is the purpose of the Authorization header in a REST API call?
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 sending the request
The Authorization header carries credentials (e.g., Bearer token) to authenticate the client.
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 specify the content type of the request body
Why it's wrong here
That's Content-Type.
- ✗
To specify the format of the response body
Why it's wrong here
That's the Accept header.
- ✗
To indicate the desired language
Why it's wrong here
Language is not typically in Authorization.
- ✓
To authenticate the client sending the request
Why this is correct
Authorization header carries credentials.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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