LPIC-1 System Architecture Practice Question
Which TWO commands can be used to display information about the CPU(s) in a Linux system? (Choose two.)
⚠ Common exam trap
Candidates often confuse uname -m (which shows architecture) with a command that provides full CPU details, or assume cpufreq-info is a standard CPU info command when it is actually a specialized frequency tool.
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
✓
cat /proc/cpuinfo
Options D and E are both correct. `cat /proc/cpuinfo` reads the virtual file /proc/cpuinfo which the kernel populates with detailed CPU information for each core, such as model name, cache size, and flags. `lscpu` is a utility that collects CPU information from /proc/cpuinfo and sysfs, presenting it in a human-readable tabular format. Both commands are standard on Linux for displaying CPU details.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
uname -m
Why it's wrong here
uname -m shows machine hardware name (e.g., x86_64), not full CPU details.
- ✗
lsusb
Why it's wrong here
lsusb lists USB devices, not CPU info.
- ✗
cpufreq-info
Why it's wrong here
cpufreq-info shows CPU frequency scaling information, not general CPU info.
- ✓
cat /proc/cpuinfo
Why this is correct
cat /proc/cpuinfo shows detailed per-CPU information.
- ✓
lscpu
Why this is correct
lscpu summarizes CPU architecture information.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LPIC-1 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-1 exam.