Quick Answer
The answer is the ParentProcessId column. This is correct because the DeviceProcessEvents table records every process execution on a device, and the ParentProcessId field stores the process ID (PID) of the process that spawned the current one. By querying for a specific PID in the ParentProcessId column, you retrieve all child processes—those directly initiated by that parent—allowing you to trace the malware’s execution chain across devices. On the SC-200 exam, this tests your ability to navigate Microsoft 365 Defender’s advanced hunting schema; a common trap is confusing ParentProcessId with ProcessId (the current process’s own PID) or DeviceName. Remember: ParentProcessId points *up* the family tree to the creator, while ProcessId identifies the child itself. A quick memory tip: “Parent PID finds the kids”—if you have the parent’s PID, query ParentProcessId to see which processes were born from it.
This SC-200 practice question tests your understanding of mitigate threats using microsoft defender xdr. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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 security analyst is investigating a potential malware outbreak detected by Microsoft 365 Defender. The analyst needs to identify all devices that have executed a specific parent process with a given ProcessId. Which column in the DeviceProcessEvents table should be used to find processes whose parent is the specified process?
ParentProcessId
ParentProcessId directly identifies the process that spawned the current process, allowing filtering for child processes.
InitiatingProcessId
Why wrong: InitiatingProcessId may refer to the initial process in a chain, not the immediate parent.
ProcessId
Why wrong: ProcessId identifies the current process, not its parent.
LogonId
Why wrong: LogonId is used for session identification, not process ancestry.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
ParentProcessId
The ParentProcessId column in the DeviceProcessEvents table stores the process ID (PID) of the parent process that initiated the current process. To find all child processes spawned by a specific parent process with a known ProcessId, you query the ParentProcessId column for that value. This directly links child processes to their parent, enabling the analyst to trace the malware's execution chain.
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.
ParentProcessId
Why this is correct
ParentProcessId directly identifies the process that spawned the current process, allowing filtering for child processes.
Related concept
Read the scenario before looking for a memorised answer.
InitiatingProcessId
Why it's wrong here
InitiatingProcessId may refer to the initial process in a chain, not the immediate parent.
ProcessId
Why it's wrong here
ProcessId identifies the current process, not its parent.
LogonId
Why it's wrong here
LogonId is used for session identification, not process ancestry.
Common exam traps
The trap here is that candidates confuse InitiatingProcessId (which often appears in alert schemas for the root process of an incident) with ParentProcessId, not realizing that in DeviceProcessEvents, the direct parent-child relationship is stored in ParentProcessId, not InitiatingProcessId.
Detailed technical explanation
Under the hood, the DeviceProcessEvents table is populated by Microsoft Defender for Endpoint's sensor, which captures process creation events via kernel callbacks (e.g., PsSetCreateProcessNotifyRoutine). The ParentProcessId is extracted from the EPROCESS block of the new process, specifically the InheritedFromUniqueProcessId field. In a real-world scenario, if a malware dropper (PID 1234) spawns multiple payloads, querying DeviceProcessEvents | where ParentProcessId == 1234 reveals all child processes, even if the dropper terminates quickly, because the event is logged at creation time.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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FAQ
Mitigate threats using Microsoft Defender XDR — This question tests Mitigate threats using Microsoft Defender XDR — Read the scenario before looking for a memorised answer..
The correct answer is: ParentProcessId — The ParentProcessId column in the DeviceProcessEvents table stores the process ID (PID) of the parent process that initiated the current process. To find all child processes spawned by a specific parent process with a known ProcessId, you query the ParentProcessId column for that value. This directly links child processes to their parent, enabling the analyst to trace the malware's execution chain.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 11, 2026
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