- A
Review EDR telemetry for file reads on sensitive documents prior to the connections
Correlation of file access with network connections strengthens exfiltration evidence.
- B
Inspect the TLS certificate presented by the remote server
Why wrong: This can reveal if it's a legitimate service or a malicious C2.
- C
Perform a memory dump of the process and look for encryption keys
Why wrong: While possible, it is advanced and may not be the first step; also requires privileged access.
- D
Analyse NetFlow/IPFIX data for unusual data transfer volumes
Unusually high outbound data volume can indicate exfiltration.
- E
Check the process' command line for suspicious parameters
Command line may reveal exfiltration tools or scripts.
Question 323 of 1,000
CS0-003 Security Operations Practice Question
This CS0-003 practice question tests your understanding of security operations. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. 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.
During a threat hunt, an analyst identifies a suspicious process that is making outbound connections to multiple IP addresses on port 443 using TLS. The analyst suspects data exfiltration. Which THREE techniques would best help confirm this hypothesis?
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
✓
Review EDR telemetry for file reads on sensitive documents prior to the connections
Analysing NetFlow/IPFIX data can reveal volume patterns indicative of exfiltration. Inspecting the TLS certificate or handshake can identify if it's a legitimate service. Checking EDR for file access events can show if sensitive files were read before the connections. The other options are less direct.
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.
- ✓
Review EDR telemetry for file reads on sensitive documents prior to the connections
Why this is correct
Correlation of file access with network connections strengthens exfiltration evidence.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
Inspect the TLS certificate presented by the remote server
Why it's wrong here
This can reveal if it's a legitimate service or a malicious C2.
- ✗
Perform a memory dump of the process and look for encryption keys
Why it's wrong here
While possible, it is advanced and may not be the first step; also requires privileged access.
- ✓
Analyse NetFlow/IPFIX data for unusual data transfer volumes
Why this is correct
Unusually high outbound data volume can indicate exfiltration.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
Check the process' command line for suspicious parameters
Why this is correct
Command line may reveal exfiltration tools or scripts.
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 developer is choosing between AES-256 (symmetric) and RSA-2048 (asymmetric) for encrypting a large file that will be sent to a partner. Symmetric encryption is fast but requires key exchange; asymmetric is slower but solves the key distribution problem. A hybrid approach — encrypt the file with AES, encrypt the AES key with RSA — is standard. Questions like this test whether you understand when each approach applies.
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: Review EDR telemetry for file reads on sensitive documents prior to the connections — Analysing NetFlow/IPFIX data can reveal volume patterns indicative of exfiltration. Inspecting the TLS certificate or handshake can identify if it's a legitimate service. Checking EDR for file access events can show if sensitive files were read before the connections. The other options are less direct.
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.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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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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