XK0-006 Troubleshooting Practice Question
An administrator needs to capture network traffic on interface eth0 for packets destined to port 443 from host 10.0.0.1, while also writing the capture to a file for later analysis. Which three tcpdump options should be used together? (Choose three.)
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
✓
-i eth0
To capture network traffic on interface eth0 for packets destined to port 443 from host 10.0.0.1, the tcpdump options needed are -i to specify the interface, port to filter by destination port, and host to specify the source host. These three options (A, B, D) together filter the desired traffic. To write the capture to a file, the -w option is additionally required, but it is not among the answer choices. Thus, the correct selections from the given list are A, B, and D.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
-i eth0
Why this is correct
Specifies the interface.
- ✓
port 443
Why this is correct
Filters by destination port.
- ✗
-c 100
Why it's wrong here
Limits packet count, not specified.
- ✓
host 10.0.0.1
Why this is correct
Filters by host.
- ✗
-n
Why it's wrong here
Disables name resolution, not required for the task.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This XK0-006 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 XK0-006 exam.