XK0-006 Troubleshooting Practice Question
A Linux administrator needs to view all listening TCP ports and the associated processes on a server. Which command should be used?
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
✓
ss -tlnp
The ss command with -tlnp options shows listening TCP ports with process information, replacing netstat.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
netstat -tulpn
Why it's wrong here
netstat is deprecated; ss is the modern replacement.
- ✓
ss -tlnp
Why this is correct
Correct: ss -tlnp shows listening TCP ports with process info.
- ✗
lsof -i
Why it's wrong here
lsof -i can show network connections but does not focus on listening ports only.
- ✗
nmap localhost
Why it's wrong here
nmap is a scanning tool, not for local process info.
Go deeper
Related to this question
Learn chapter
Linux Fundamentals and History
Key term
Linux
Linux is an open-source operating system that manages computer hardware and software, widely used in servers, desktops, and embedded systems.
Key term
Process
In IT service management, a process is a structured set of activities designed to accomplish a specific objective, such as managing incidents or changes, by transforming inputs into defined outputs.
About these practice questions
Courseiva writes every XK0-006 question from scratch — 979 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
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.