312-39 Incident Detection And Triage Practice Question
You are performing alert triage on a potential data exfiltration attempt. The SIEM shows 50GB of data transferred to a known cloud storage IP address. What is the most important next step in your triage process?
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
✓
Check the asset's 'Business Criticality' and 'Owner' in the CMDB to see if the activity is a scheduled backup.
Validating the legitimacy of the activity is critical. Checking if the user is authorized for cloud backups or if the machine is a known server/backup agent prevents false escalation.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Block the cloud storage IP address on the corporate firewall.
Why it's wrong here
This might block legitimate business traffic to the cloud provider.
- ✗
Immediately disable the user account in Active Directory.
Why it's wrong here
Prematurely disabling an account can cause business disruption without confirming malicious intent.
- ✓
Check the asset's 'Business Criticality' and 'Owner' in the CMDB to see if the activity is a scheduled backup.
Why this is correct
Verification against CMDB data is the standard first step in triage to rule out authorized activity.
- ✗
Re-image the affected host immediately.
Why it's wrong here
This destroys evidence needed for forensic analysis.
About these practice questions
This 312-39 question is part of Courseiva's 202-question bank — original exam-style content with full explanations and wrong-answer analysis, never real exam questions or exam dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official EC-Council exam blueprint
This 312-39 practice question is part of Courseiva's free EC-Council 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 312-39 exam.