XK0-006 System Management Practice Question
A Linux administrator needs to scan all currently connected USB devices and display detailed information such as vendor ID, product ID, and device class. Which command should the administrator run?
⚠ Common exam trap
Candidates often confuse PCI device listing with USB device listing; lspci shows internal buses, not external USB peripherals.
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
✓
lsusb
The lsusb command queries the USB subsystem and prints a line for each connected USB device, including vendor and product IDs, device class, and bus topology. It is the standard utility for quickly enumerating USB devices on a Linux system without needing elevated privileges.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
lsusb
Why this is correct
lsusb enumerates USB buses and connected devices, showing vendor and product IDs, device class, and bus/device numbers. It directly answers the need to list currently connected USB devices with detailed identification information without requiring root privileges.
- ✗
lshw -class usb
Why it's wrong here
lshw -class usb provides detailed hardware information for USB controllers and devices but is not the standard command for a quick device enumeration. It may require root to show full details and is more verbose than needed for simply listing connected USB devices with IDs.
- ✗
lspci
Why it's wrong here
lspci lists PCI devices such as network cards, GPUs, and storage controllers. It does not enumerate USB devices connected to the system, so it cannot show vendor and product IDs for USB peripherals. The administrator needs USB-specific output, which lspci does not provide.
- ✗
lsblk
Why it's wrong here
lsblk displays block devices like disks and partitions in a tree format, including mountpoints and sizes. It may show USB storage as a block device, but it does not list all USB devices such as keyboards, cameras, or hubs, nor does it display USB vendor and product IDs.
Go deeper
Related to this question
Learn chapter
Linux Fundamentals and History
Key term
Utility
Utility, in IT service management, is the measure of a service's functionality that ensures it is fit for purpose by meeting the specific needs of the customer.
Key term
Linux
Linux is an open-source operating system that manages computer hardware and software, widely used in servers, desktops, and embedded systems.
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official CompTIA exam blueprint
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.