Q1
Walk us through how you would investigate a suspicious spike in failed login attempts across multiple user accounts. What tools would you use in your SIEM, and what log fields would you prioritize analyzing?
Why they ask this:* This tests your practical SIEM knowledge, log analysis skills, and ability to triage a common SOC alert—a core responsibility for mid-level analysts.
Q2
Explain the difference between signature-based and behavioral-based detection methods. Can you provide an example of a threat that signature-based detection might miss?
Why they ask this:* This assesses your understanding of detection methodologies and whether you grasp the limitations of current security tools—critical for writing effective detection rules and understanding alert blind spots.
Q3
You're reviewing network traffic in Wireshark and notice DNS queries to newly registered domains with randomized character patterns. What could this indicate, and what additional artifacts would you look for to confirm your hypothesis?
Why they ask this:* This tests your ability to recognize indicators of compromise (IoCs), understand command-and-control communication patterns, and connect technical evidence to specific threat tactics.
Q4
Describe your experience with incident response frameworks (such as NIST or MITRE ATT&CK). How have you used these frameworks to structure an investigation or improve detection capabilities?