- A
File Size: > 1 MB
Why wrong: File size is not a reliable indicator for suspicious DLL execution.
- B
Parent Process: explorer.exe
Why wrong: Parent process is not necessary for this detection and may increase false negatives.
- C
Process Name: rundll32.exe
Targeting rundll32.exe reduces false positives from other processes.
- D
Image Path: C:\Windows\System32\rundll32.exe
Why wrong: This is the typical location; including it would not reduce false positives.
- E
Command Line: contains *\Temp\*.dll
Specifying the temp directory path filters out legitimate DLL executions from system folders.
Question 594 of 1,000
CS0-003 Security Operations Practice Question
This CS0-003 practice question tests your understanding of security operations. 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.
An analyst is creating a Sigma rule to detect suspicious use of rundll32.exe to execute DLL files from temporary directories. Which TWO fields should the analyst include in the rule to minimize false positives?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"minimum / minimize"Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
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
✓
Process Name: rundll32.exe
To avoid false positives, the rule should specify the process name (rundll32.exe) and the command-line argument containing a path to a temp directory, as legitimate uses rarely involve DLLs from temp folders.
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.
- ✗
File Size: > 1 MB
Why it's wrong here
File size is not a reliable indicator for suspicious DLL execution.
- ✗
Parent Process: explorer.exe
Why it's wrong here
Parent process is not necessary for this detection and may increase false negatives.
- ✓
Process Name: rundll32.exe
Why this is correct
Targeting rundll32.exe reduces false positives from other processes.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Image Path: C:\Windows\System32\rundll32.exe
Why it's wrong here
This is the typical location; including it would not reduce false positives.
- ✓
Command Line: contains *\Temp\*.dll
Why this is correct
Specifying the temp directory path filters out legitimate DLL executions from system folders.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
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 SOC analyst notices unusual lateral movement in the network at 2 AM. The IR playbook dictates: identify and contain (isolate the affected machine), then eradicate (remove the malware), then recover (restore from backup), then document. Skipping containment before eradication risks the attacker regaining access. Questions like this test the sequence and rationale of incident response phases.
What to study next
Got this wrong? Here's your next step.
Identify which CS0-003 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.
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FAQ
Questions learners often ask
What does this CS0-003 question test?
Security Operations — This question tests Security Operations — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Process Name: rundll32.exe — To avoid false positives, the rule should specify the process name (rundll32.exe) and the command-line argument containing a path to a temp directory, as legitimate uses rarely involve DLLs from temp folders.
What should I do if I get this CS0-003 question wrong?
Identify which CS0-003 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: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
This CS0-003 practice question is part of Courseiva's free CompTIA 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 CS0-003 exam.
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