FC0-U71 Software Development Concepts Practice Question
A web developer is creating a weather application that retrieves data from a third-party service. The service requires an identifier to track usage and authenticate requests. The developer includes this identifier in the HTTP header of each request. What is this identifier called?
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
✓
API key
An API key is a unique identifier used to authenticate and authorize API requests, often passed in headers.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
JWT
Why it's wrong here
JWT is a token format for claims, not a simple key.
- ✗
Session ID
Why it's wrong here
Session IDs are used for maintaining user sessions, not for API authentication.
- ✓
API key
Why this is correct
API keys are simple identifiers used for authentication and tracking.
- ✗
OAuth token
Why it's wrong here
OAuth tokens are used for delegated authorization, not simple usage tracking.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA 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 FC0-U71 exam.