Quick Answer
The answer is the SigninLogs table. This is the correct primary source because it captures both failed and successful user sign-in events from Azure Active Directory, including interactive and non-interactive logins, making it essential for analyzing sign-in patterns. With fields like ResultType (where 0 indicates success and codes like 50125 indicate failure) and UserPrincipalName, you can build a KQL query that sequences multiple failures followed by a success for the same user. On the AZ-500 exam, this tests your ability to choose the right Azure Sentinel table for identity-based threat detection—a common trap is reaching for the AuditLogs table, which tracks configuration changes but not authentication outcomes. Remember the memory tip: “Sign-in logs show the door, audit logs show the key.”
This AZ-500 practice question tests your understanding of manage identity and access. 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 SOC analyst needs a Sentinel query that detects multiple failed sign-ins followed by a successful sign-in for the same user. Which table is the best primary source?
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.
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.
SecurityAlert
Why wrong: This does not meet the stated requirement as directly as the correct option.
AzureActivity
Why wrong: This does not meet the stated requirement as directly as the correct option.
DeviceNetworkEvents
Why wrong: This does not meet the stated requirement as directly as the correct option.
SigninLogs
Correct for the stated requirement.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
SigninLogs
SigninLogs is the correct primary source because it captures both failed and successful user sign-in events from Azure AD, including interactive and non-interactive logins. This table provides the necessary fields like ResultType (e.g., 0 for success, 50125 for failure) and UserPrincipalName to build a KQL query that detects a sequence of failed sign-ins followed by a successful one for the same user.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
SecurityAlert
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
AzureActivity
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
DeviceNetworkEvents
Why it's wrong here
This does not meet the stated requirement as directly as the correct option.
SigninLogs
Why this is correct
Correct for the stated requirement.
Clue confirmation
The clue words "best", "primary" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often confuse AzureActivity (which logs administrative actions) with sign-in logs, or assume SecurityAlert contains raw event data, when in fact only SigninLogs provides the granular authentication events needed for this detection pattern.
Detailed technical explanation
Under the hood, the SigninLogs table in Azure Sentinel stores each sign-in attempt as a separate row with a correlation ID, allowing you to use the `summarize` operator with `make_list` to order events by `TimeGenerated` per user. A real-world scenario might involve detecting a password spray attack where an attacker tries multiple failed logins across different accounts and then succeeds on one, requiring a query that filters for a pattern like `countif(ResultType != 0) > 3` followed by `ResultType == 0` within a short time window.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A healthcare organisation deploys an application with a public-facing web tier and a private database tier. The database subnet has no public IP and only accepts connections from the web tier's security group. Questions like this test whether you can design cloud network isolation using VNets/VPCs, subnets, and security group rules.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Manage identity and access — study guide chapter
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FAQ
Manage identity and access — This question tests Manage identity and access — Read the scenario before looking for a memorised answer..
The correct answer is: SigninLogs — SigninLogs is the correct primary source because it captures both failed and successful user sign-in events from Azure AD, including interactive and non-interactive logins. This table provides the necessary fields like ResultType (e.g., 0 for success, 50125 for failure) and UserPrincipalName to build a KQL query that detects a sequence of failed sign-ins followed by a successful one for the same user.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Yes — watch for: "best", "primary". 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.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
This AZ-500 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-500 exam.
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