- A
Switch the diagnostic setting back to the legacy AzureDiagnostics schema so all logs land there.
Why wrong: That would work only by reverting the schema choice, but it is not the best troubleshooting fix here.
- B
Query the storage account's dedicated resource-specific log table and filter for failed write operations.
When resource-specific diagnostic mode is enabled, logs no longer land in AzureDiagnostics for that resource. The correct action is to query the dedicated storage log table produced by the diagnostic setting, then filter for the failed write status and time window. This aligns the query with the actual schema that is collecting the data.
- C
Use the Azure Activity log because blob write failures are always control-plane events.
Why wrong: Blob write failures are data-plane events, so the Activity log will not contain the needed request details.
- D
Create a metric alert on storage capacity because that metric includes failed requests.
Why wrong: Capacity metrics do not reveal operation-level failure details such as request status codes or write errors.
Quick Answer
The answer is to query the storage account's dedicated resource-specific log table and filter for failed write operations. This is correct because when a diagnostic setting is configured with the resource-specific schema, Azure routes logs to dedicated tables like StorageBlobLogs rather than the legacy AzureDiagnostics table; querying AzureDiagnostics returns no rows because the logs are not stored there. On the AZ-104 exam, this concept tests your understanding of how diagnostic settings differ between the two schema modes—a common trap is assuming all logs land in AzureDiagnostics, but resource-specific mode creates separate, schema-aligned tables for each resource type. Remember the memory tip: "Resource-specific means table-specific—skip the legacy, query the dedicated."
AZ-104 Monitor and Maintain Azure Resources Practice Question
This AZ-104 practice question tests your understanding of monitor and maintain azure resources. 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.
An administrator enabled diagnostic settings on an Azure Storage account using the resource-specific schema. A coworker then ran a query against AzureDiagnostics and got no rows, even though failed blob writes occurred during the last hour. What is the best fix?
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 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
Query the storage account's dedicated resource-specific log table and filter for failed write operations.
When a diagnostic setting is configured with the resource-specific schema, Azure routes logs to dedicated tables (e.g., StorageBlobLogs) rather than the legacy AzureDiagnostics table. Querying AzureDiagnostics returns no rows because the logs are not stored there. The correct fix is to query the appropriate resource-specific log table (e.g., StorageBlobLogs) and filter for failed write operations, as this table contains the detailed, schema-specific data for the storage account's blob operations.
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.
- ✗
Switch the diagnostic setting back to the legacy AzureDiagnostics schema so all logs land there.
Why it's wrong here
That would work only by reverting the schema choice, but it is not the best troubleshooting fix here.
- ✓
Query the storage account's dedicated resource-specific log table and filter for failed write operations.
Why this is correct
When resource-specific diagnostic mode is enabled, logs no longer land in AzureDiagnostics for that resource. The correct action is to query the dedicated storage log table produced by the diagnostic setting, then filter for the failed write status and time window. This aligns the query with the actual schema that is collecting the data.
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 the Azure Activity log because blob write failures are always control-plane events.
Why it's wrong here
Blob write failures are data-plane events, so the Activity log will not contain the needed request details.
- ✗
Create a metric alert on storage capacity because that metric includes failed requests.
Why it's wrong here
Capacity metrics do not reveal operation-level failure details such as request status codes or write errors.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates assume all diagnostic logs land in the AzureDiagnostics table by default, overlooking that the resource-specific schema redirects logs to dedicated tables, leading them to incorrectly choose Option A or fail to query the correct table.
Detailed technical explanation
How to think about this question
The resource-specific schema in Azure Monitor diagnostic settings creates separate tables per resource type (e.g., StorageBlobLogs, StorageQueueLogs) with columns tailored to that resource's operations. This schema reduces query complexity and cost compared to the legacy AzureDiagnostics table, which aggregates all resource logs into a single wide table with a ResourceType column for filtering. In a real-world scenario, if you need to audit failed blob writes for compliance, you would query StorageBlobLogs with a filter like StatusCode >= 400 and OperationName == 'PutBlob' to isolate failures efficiently.
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.
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.
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FAQ
Questions learners often ask
What does this AZ-104 question test?
Monitor and Maintain Azure Resources — This question tests Monitor and Maintain Azure Resources — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Query the storage account's dedicated resource-specific log table and filter for failed write operations. — When a diagnostic setting is configured with the resource-specific schema, Azure routes logs to dedicated tables (e.g., StorageBlobLogs) rather than the legacy AzureDiagnostics table. Querying AzureDiagnostics returns no rows because the logs are not stored there. The correct fix is to query the appropriate resource-specific log table (e.g., StorageBlobLogs) and filter for failed write operations, as this table contains the detailed, schema-specific data for the storage account's blob operations.
What should I do if I get this AZ-104 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.
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Last reviewed: Jun 11, 2026
This AZ-104 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-104 exam.
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