312-39 Incident Response Practice Question
You need to export a PCAP for a suspicious network flow. Using Wireshark, which filter would you use to isolate traffic from a specific suspicious source IP 192.168.1.50?
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
✓
ip.src == 192.168.1.50
The 'ip.src' filter isolates traffic originating from the specified source IP.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ip.addr == 192.168.1.50
Why it's wrong here
This includes source and destination traffic.
- ✗
src.ip == 192.168.1.50
Why it's wrong here
This is not valid Wireshark syntax.
- ✓
ip.src == 192.168.1.50
Why this is correct
This correctly filters for source traffic only.
- ✗
filter: 192.168.1.50
Why it's wrong here
This is not valid Wireshark syntax.
Visual reference
About these practice questions
One of 202 original 312-39 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. 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.