This LPIC-1 practice question tests your understanding of system architecture. Examine the command output carefully: the correct answer depends on what the output actually shows, not on general recall alone. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
Why wrong: The output shows 10.0 GiB and 2.00 GiB, not GB. Although marketing sizes may be 10.7 GB and 2.15 GB, the correct values per dmesg are in GiB.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Two disks: sda 10.0 GiB, sdb 2.00 GiB
The output shows two disks: sda with 20971520 logical blocks of 512 bytes = 10737418240 bytes = 10.0 GiB, and sdb with 4194304 blocks = 2147483648 bytes = 2.00 GiB. The sizes are given in GiB in the output.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Two disks: sda 10.0 GiB, sdb 2.00 GiB
Why this is correct
Correctly matches the output sizes in GiB.
Related concept
Read the scenario before looking for a memorised answer.
✗
Two disks: sda 10.7 GB, sdb 2.15 GB
Why it's wrong here
The output shows 10.0 GiB and 2.00 GiB, not GB. Although marketing sizes may be 10.7 GB and 2.15 GB, the correct values per dmesg are in GiB.
✗
Three disks: sda, sdb, and an unknown device
Why it's wrong here
Only two disks are shown.
✗
One disk: sda 10.7 GB
Why it's wrong here
Two disks are detected: sda and sdb.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Trap categories for this question
Command / output trap
The output shows 10.0 GiB and 2.00 GiB, not GB. Although marketing sizes may be 10.7 GB and 2.15 GB, the correct values per dmesg are in GiB.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the LPIC-1 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which LPIC-1 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
System Architecture — This question tests System Architecture — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Two disks: sda 10.0 GiB, sdb 2.00 GiB — The output shows two disks: sda with 20971520 logical blocks of 512 bytes = 10737418240 bytes = 10.0 GiB, and sdb with 4194304 blocks = 2147483648 bytes = 2.00 GiB. The sizes are given in GiB in the output.
What should I do if I get this LPIC-1 question wrong?
Identify which LPIC-1 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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