The answer is `SigninLogs | where ResultType != 0`. This KQL query is correct because in Azure AD sign-in logs, a `ResultType` value of 0 represents a successful sign-in, while any non-zero value—such as 50125 or 53003—indicates a failure, so filtering for records where `ResultType` is not equal to zero isolates only the failed sign-in records. On the AZ-104 exam, this question tests your ability to write a KQL query for failed sign-in logs within a Log Analytics workspace, often appearing as a scenario where a support engineer must troubleshoot authentication issues. A common trap is confusing `ResultType` with `Status` or using `== 0` instead of `!= 0`, which would return only successes. For a quick memory tip, think of zero as the “hero” that succeeds—any non-zero result is a failure that you need to catch.
AZ-104 Monitor and Maintain Azure Resources Practice Question
This AZ-104 practice question tests your understanding of monitor and maintain azure resources. 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.
A support engineer needs to search a Log Analytics workspace for only failed sign-in records. Which KQL query should they use?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
SigninLogs | where ResultType != 0
Option B is correct because in Azure AD sign-in logs, a `ResultType` of 0 indicates a successful sign-in, while any non-zero value (e.g., 50125, 53003) indicates a failure. The KQL query `SigninLogs | where ResultType != 0` filters for all records where the result type is not zero, thus returning only failed sign-in records.
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.
✗
SigninLogs | where ResultType == 0
Why it's wrong here
ResultType 0 typically indicates success, so this query would not return failed sign-ins.
✓
SigninLogs | where ResultType != 0
Why this is correct
Filtering for values other than zero is a common way to return failed sign-in records in SigninLogs.
Related concept
Read the scenario before looking for a memorised answer.
✗
SigninLogs | summarize count()
Why it's wrong here
This counts all records but does not filter for failed sign-ins.
✗
SigninLogs | project UserPrincipalName
Why it's wrong here
Projecting a column changes the displayed fields, but it does not identify failed events.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates may mistakenly think `ResultType == 0` indicates a failure, when in fact 0 means success, and they overlook that non-zero values represent various failure codes.
Detailed technical explanation
How to think about this question
Azure AD sign-in logs use `ResultType` to indicate the outcome: 0 for success, and various non-zero codes (e.g., 50125 for password reset required, 53003 for blocked by Conditional Access) for failures. The `where` operator in KQL filters rows based on a boolean expression, so `!= 0` correctly excludes successful sign-ins. This query is commonly used in monitoring and alerting scenarios to track authentication failures for security analysis.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-104 question in full detail.
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: SigninLogs | where ResultType != 0 — Option B is correct because in Azure AD sign-in logs, a `ResultType` of 0 indicates a successful sign-in, while any non-zero value (e.g., 50125, 53003) indicates a failure. The KQL query `SigninLogs | where ResultType != 0` filters for all records where the result type is not zero, thus returning only failed sign-in records.
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.
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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