AZ-204 Develop for Azure storage Practice Question
This AZ-204 practice question tests your understanding of develop for azure storage. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Which TWO of the following are valid methods for authenticating to Azure Blob Storage?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Shared Key (storage account key)
Option C is correct because the Shared Key (storage account key) method uses the HMAC-SHA256 algorithm to sign a request string with the storage account key, providing full administrative access to the storage account. Option D is correct because Azure AD authentication with RBAC allows fine-grained access control to blob containers and blobs without exposing account keys, using OAuth 2.0 tokens.
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.
✗
Connection string with account key
Why it's wrong here
Connection strings are not an authentication method per se.
✗
Shared access signature (SAS) token
Why it's wrong here
SAS is for delegated access, not authentication.
✓
Shared Key (storage account key)
Why this is correct
Shared Key is a valid authentication method.
Related concept
Read the scenario before looking for a memorised answer.
Read the scenario before looking for a memorised answer.
✗
Client certificate authentication
Why it's wrong here
Certificate authentication is not supported directly for Blob Storage.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often mistake a connection string (Option A) as a distinct authentication method, when it is simply a string that contains the account key and endpoint, making it equivalent to Shared Key authentication, not a separate valid method.
Detailed technical explanation
How to think about this question
Under the hood, Shared Key authentication constructs the Authorization header by concatenating the HTTP verb, headers, and resource URI, then signing that string with the storage account key using HMAC-SHA256. Azure AD authentication for Blob Storage uses OAuth 2.0 bearer tokens, where the client obtains a token from Azure AD and includes it in the Authorization header; RBAC roles like 'Storage Blob Data Contributor' control access at the container or blob level. A real-world scenario where this matters is when you need to audit access: Azure AD authentication provides detailed logs and conditional access policies, whereas Shared Key authentication cannot be tied to individual users.
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 media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-204 question in full detail.
Develop for Azure storage — This question tests Develop for Azure storage — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Shared Key (storage account key) — Option C is correct because the Shared Key (storage account key) method uses the HMAC-SHA256 algorithm to sign a request string with the storage account key, providing full administrative access to the storage account. Option D is correct because Azure AD authentication with RBAC allows fine-grained access control to blob containers and blobs without exposing account keys, using OAuth 2.0 tokens.
What should I do if I get this AZ-204 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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This AZ-204 practice question is part of Courseiva's free Microsoft 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 AZ-204 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.