The answer is that the most important limitation is the lack of read access to the secondary region in Azure Storage GRS. While geo-redundant storage replicates your data to a paired region for durability, it does not allow you to read that data unless a manual failover is initiated. This manual process can take over an hour, directly violating the requirement that the storage account be readable within 1 hour if the primary region fails. On the AZ-305 exam, this question tests your understanding of the critical distinction between GRS and RA-GRS (read-access geo-redundant storage), where the “RA” prefix explicitly enables secondary reads. A common trap is assuming GRS automatically provides failover or read access, but it does not—only RA-GRS or geo-zone-redundant storage (GZRS) with read access meets a sub-1-hour RTO. Remember the mnemonic: “GRS is for backup, RA-GRS is for access.”
AZ-305 Design business continuity solutions Practice Question
This AZ-305 practice question tests your understanding of design business continuity solutions. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
Refer to the exhibit. You deploy this ARM template to create a storage account in the West US region. The business continuity requirement states that if the primary region becomes unavailable, the storage account must be readable within 1 hour. What is the most important limitation of this configuration?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "primary"
Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The storage account does not support read access in the secondary region, so manual failover is required, which may exceed the 1-hour RTO
Option A is correct because GRS (geo-redundant storage) does not provide read access to the secondary region; failover is manual and may take longer than 1 hour. Option B is wrong because the access tier does not affect DR. Option C is wrong because HTTPS enforcement does not affect DR. Option D is wrong because GRS replicates data to a paired region, but without read access.
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.
✓
The storage account does not support read access in the secondary region, so manual failover is required, which may exceed the 1-hour RTO
Why this is correct
GRS requires manual failover and no read access.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The storage account uses GRS, which replicates data only to a secondary region within the same geography, not to a different region
Why it's wrong here
GRS replicates to a paired region, which is correct.
✗
The storage account only supports HTTPS traffic, which blocks replication
The storage account is configured with the Hot access tier, which prevents failover
Why it's wrong here
Hot tier does not affect failover.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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-305 question in full detail.
Identify which AZ-305 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Design business continuity solutions — This question tests Design business continuity solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The storage account does not support read access in the secondary region, so manual failover is required, which may exceed the 1-hour RTO — Option A is correct because GRS (geo-redundant storage) does not provide read access to the secondary region; failover is manual and may take longer than 1 hour. Option B is wrong because the access tier does not affect DR. Option C is wrong because HTTPS enforcement does not affect DR. Option D is wrong because GRS replicates data to a paired region, but without read access.
What should I do if I get this AZ-305 question wrong?
Identify which AZ-305 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Are there clue words in this question I should notice?
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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