LPIC-2 Advanced Networking Configuration Practice Question
Which TWO tools are commonly used for traffic shaping and QoS on Linux? (Choose two.)
⚠ Common exam trap
It's easy for candidates to confuse iptables' ability to mark packets for QoS with actually performing traffic shaping, forgetting that iptables itself does not implement queuing or bandwidth limits.
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
✓
wondershaper
Wondershaper is a user-friendly shell script that wraps the `tc` command to simplify traffic shaping by limiting bandwidth on a network interface. It uses the Linux kernel's QoS capabilities, specifically the HTB (Hierarchical Token Bucket) queuing discipline, to prioritize and throttle traffic. This makes it a common tool for basic traffic shaping tasks on Linux.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
ethtool
Why it's wrong here
Shows and changes NIC parameters, not QoS.
- ✓
wondershaper
Why this is correct
Script that simplifies use of tc for bandwidth limiting.
- ✗
iptables
Why it's wrong here
Primarily packet filtering; can classify packets but not shape.
- ✓
tc
Why this is correct
Traffic control tool for shaping, scheduling, policing.
- ✗
route
Why it's wrong here
Manages routing table, not traffic shaping.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LPIC-2 practice question is part of Courseiva's free LPI 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 LPIC-2 exam.