The answer is to authenticate by adding the API key in the HTTP header as 'Authorization: Bearer <key>'. This method is correct because it follows the token-based authentication standard defined in RFC 6750, where the bearer token—in this case, the API key—is transmitted in the Authorization header to prove the client’s identity without exposing credentials in URLs or server logs. On the CompTIA Data+ DA0-001 exam, this concept tests your understanding of secure API data collection, often appearing in questions about retrieving JSON from web services; a common trap is choosing query string parameters, which are less secure and can be logged or cached. Remember the mnemonic “Bearer in Header, Not in URL” to avoid that mistake.
DA0-001 Mining and Acquiring Data Practice Question
This DA0-001 practice question tests your understanding of mining and acquiring data. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
A data analyst is tasked with collecting data from a web API that returns JSON. The API requires an API key in the header. Which method should be used to authenticate?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Add the API key in the HTTP header as 'Authorization: Bearer <key>'
The correct method is to include the API key in the HTTP header using the 'Authorization: Bearer <key>' format. This is the standard approach for token-based authentication in REST APIs, as defined by RFC 6750. It keeps the credential out of URLs and logs, and is the expected mechanism for API key authentication in modern web APIs.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
Use a session cookie
Why it's wrong here
Session cookies are for web sessions, not API authentication.
✓
Add the API key in the HTTP header as 'Authorization: Bearer <key>'
Why this is correct
Standard bearer token authentication is secure and widely used.
Related concept
Read the scenario before looking for a memorised answer.
✗
Store the API key in the database and reference it
Why it's wrong here
Storing the key is about management, not the method of sending it.
✗
Include the API key in the URL query string
Why it's wrong here
Including the key in the URL is insecure and can be logged.
Common exam traps
Common exam trap: answer the scenario, not the keyword
CompTIA often tests the distinction between authentication methods, and the trap here is that candidates may confuse storing credentials (Option C) with transmitting them, or think that query strings (Option D) are acceptable because they work technically, ignoring security and standard practices.
Detailed technical explanation
How to think about this question
The 'Authorization: Bearer' header is part of the OAuth 2.0 framework (RFC 6750), where the token (API key) is sent as a bearer token. This method ensures the key is transmitted over HTTPS and is not cached by proxies or browsers. In practice, many APIs also support 'X-API-Key' headers, but the Bearer scheme is the most widely adopted for token-based authentication.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A junior network technician can log in to a core router but cannot reach the enable prompt or configuration mode. The AAA server is authenticating the login — but the authorisation policy only grants privilege level 1, not 15. Authentication (who you are) is working; authorisation (what you can do) is not.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Mining and Acquiring Data — This question tests Mining and Acquiring Data — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Add the API key in the HTTP header as 'Authorization: Bearer <key>' — The correct method is to include the API key in the HTTP header using the 'Authorization: Bearer <key>' format. This is the standard approach for token-based authentication in REST APIs, as defined by RFC 6750. It keeps the credential out of URLs and logs, and is the expected mechanism for API key authentication in modern web APIs.
What should I do if I get this DA0-001 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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