The answer is to use Azure Data Box to physically ship the data to Azure. This is correct because with a 500 GB backup and a 10 Mbps bandwidth limit, the theoretical transfer time over the internet is about 111 hours, far exceeding the 24-hour requirement; Azure Data Box bypasses network constraints entirely by shipping the data on a ruggedized device. On the AZ-204 exam, this scenario tests your understanding of when to choose offline data transfer over online methods, often appearing as a trap where candidates mistakenly select AzCopy or Azure File Sync. The key insight is that limited bandwidth and a tight time window make physical shipping the only viable solution for large file transfers. Remember the memory tip: “If the clock runs out before the download bar fills, ship the disk.”
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.
You need to securely transfer an on-premises database backup to Azure Blob Storage. The backup file is 500 GB. You have limited bandwidth (10 Mbps) and need the transfer to complete within 24 hours. What is the best solution?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use Azure Data Box to physically ship the data to Azure.
Given the 500 GB backup file and a 10 Mbps bandwidth limit, the theoretical maximum transfer time over the internet is approximately 500 GB * 8 bits/byte / (10 Mbps) = 400,000 seconds ≈ 111 hours, far exceeding the 24-hour requirement. Azure Data Box is the best solution because it allows you to physically ship the data on a secure, ruggedized device, bypassing network constraints entirely and ensuring the transfer completes within the required timeframe.
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 Azure File Sync to replicate the backup to Azure Files.
Why it's wrong here
File Sync is for file shares, not blob storage, and still uses network.
✓
Use Azure Data Box to physically ship the data to Azure.
Why this is correct
Data Box is designed for large data transfers when network is slow.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use AzCopy to copy the backup file directly to Blob Storage.
Why it's wrong here
Network bandwidth is insufficient to meet the time requirement.
✗
Set up an ExpressRoute connection and use AzCopy.
Why it's wrong here
ExpressRoute does not increase bandwidth; the underlying link is still 10 Mbps.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may overlook the bandwidth calculation and assume AzCopy or ExpressRoute can handle the transfer within 24 hours, failing to recognize that even with a dedicated connection, the raw throughput is insufficient for 500 GB at 10 Mbps.
Detailed technical explanation
How to think about this question
Azure Data Box uses AES-256 encryption for data at rest and TLS 1.2 for data in transit during upload to Azure. The device supports up to 80 TB of usable capacity and is shipped with a tamper-proof seal; once the data is copied locally, the device is returned to Azure where the data is ingested into Blob Storage. This approach is ideal for scenarios with low bandwidth or intermittent connectivity, as it eliminates network dependency entirely.
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: Use Azure Data Box to physically ship the data to Azure. — Given the 500 GB backup file and a 10 Mbps bandwidth limit, the theoretical maximum transfer time over the internet is approximately 500 GB * 8 bits/byte / (10 Mbps) = 400,000 seconds ≈ 111 hours, far exceeding the 24-hour requirement. Azure Data Box is the best solution because it allows you to physically ship the data on a secure, ruggedized device, bypassing network constraints entirely and ensuring the transfer completes within the required timeframe.
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.
Are there clue words in this question I should notice?
Yes — watch for: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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.