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200-901 Understanding and Using APIs Practice Question

A developer needs to use Postman to test an API that uses Basic authentication. How should the credentials be configured in Postman?

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

✓

Use the Authorization tab, select Basic Auth, and enter username and password

Postman's Authorization tab provides a Basic Auth type that automatically encodes credentials. The raw base64-encoded string is the underlying mechanism but is handled by Postman. Basic auth does not use bearer tokens.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

✗
Send the credentials in the request body as JSON
Why it's wrong here
Basic auth uses the Authorization header, not the body.
✓
Use the Authorization tab, select Basic Auth, and enter username and password
Why this is correct
Postman will automatically encode and set the header.
✗
Set the Authorization header to 'Bearer base64(username:password)'
Why it's wrong here
Bearer is for token-based auth, not Basic.
✗
Add a query parameter 'auth' with base64-encoded credentials
Why it's wrong here
Credentials should not be sent as query parameters.

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200-901 Understanding and Using APIs Practice Question

Why each option matters

Option-by-option breakdown

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