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SNOW-CAD Integrating and managing application data Practice Question

A company uses REST API to push data from ServiceNow to an external system. The authentication keeps failing with HTTP 401. They have set up OAuth 2.0 client credentials grant. What is the most likely cause?

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

✓

Wrong token endpoint URL

In client credentials grant, the token endpoint must be correct. Option A is wrong because missing client ID would cause a different error. Option C is wrong because HTTPS is required but not the most likely cause of 401. Option D is wrong because client credentials grant does not use refresh 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.

✗
Missing client ID in the request
Why it's wrong here
Missing client ID would cause a bad request or authentication failure, but the most likely cause with OAuth is incorrect token endpoint.
✓
Wrong token endpoint URL
Why this is correct
If the token endpoint URL is incorrect, the authorization server cannot validate credentials, leading to 401.
✗
Using HTTP instead of HTTPS
Why it's wrong here
HTTP would cause a protocol error but not specifically a 401; most OAuth providers require HTTPS.
✗
Refresh token has expired
Why it's wrong here
Client credentials grant does not use refresh tokens; it issues access tokens directly.

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SNOW-CAD Integrating and managing application data Practice Question

Why each option matters

Option-by-option breakdown

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