SNOW-CAD Platform Features and Integration Practice Question
A ServiceNow developer is integrating with an external system using a REST message. The external system requires a custom header 'X-API-Key' to be included in every request. Where should the developer configure this header to ensure it is automatically included in all REST messages that call this endpoint?
⚠ Common exam trap
The trap is that candidates assume custom API keys can be passed as query parameters or handled by authentication profiles, but they must be defined in the HTTP Headers tab of the REST message.
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
✓
In the 'HTTP Headers' tab of the REST message definition
The 'HTTP Headers' tab in a REST message definition allows you to define custom headers that are automatically included in every request sent to that endpoint. This is the standard location for headers like 'X-API-Key' that must accompany all calls, as they are part of the HTTP request metadata, not query parameters or authentication credentials.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
In the 'Query Parameters' tab of the REST message definition
Why it's wrong here
Query parameters are part of the URL query string, not HTTP headers.
- ✓
In the 'HTTP Headers' tab of the REST message definition
Why this is correct
Correct: Custom headers are defined here and automatically included in every request.
- ✗
In the 'Authentication Profile' associated with the REST message
Why it's wrong here
Authentication profiles handle credentials like OAuth tokens, not custom headers.
- ✗
In the Scripted REST API used to create the endpoint
Why it's wrong here
Scripted REST APIs are for building endpoints that receive requests, not for outbound calls.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This SNOW-CAD practice question is part of Courseiva's free ServiceNow 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 SNOW-CAD exam.