Question 214 of 532
GNU and Unix CommandshardMultiple ChoiceObjective-mapped

LPIC-1 GNU and Unix Commands Practice Question

This LPIC-1 practice question tests your understanding of gnu and unix commands. Compare every option against the stated constraints before choosing — the best answer satisfies all requirements, not just the most obvious one. 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.

Exhibit

$ cat /proc/partitions
major minor  #blocks  name
   8        0   52428800 sda
   8        1     524288 sda1
   8        2   51873792 sda2
   8       16   10485760 sdb
   8       17    1048576 sdb1
   8       18    9437184 sdb2
$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda2        50G   20G   30G  40% /
/dev/sda1       512M  100M  413M  20% /boot
/dev/sdb2       9.0G  8.5G  500M  95% /var
$ lsblk -f
NAME   FSTYPE LABEL UUID                                 MOUNTPOINT
sda
├─sda1 ext4          a1b2c3d4-...                       /boot
└─sda2 ext4          e5f6g7h8-...                       /
sdb
├─sdb1 swap          1234-5678-...                      [SWAP]
└─sdb2 ext4          i9j0k1l2-...                       /var

Refer to the exhibit. The /var partition is nearly full. Which of the following is the most appropriate first step to free up space?

Clue words in this question

Noticing these words before you look at the options changes how you read each choice.

  • Clue: "first"

    Why it matters: Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

Exhibit

$ cat /proc/partitions
major minor  #blocks  name
   8        0   52428800 sda
   8        1     524288 sda1
   8        2   51873792 sda2
   8       16   10485760 sdb
   8       17    1048576 sdb1
   8       18    9437184 sdb2
$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda2        50G   20G   30G  40% /
/dev/sda1       512M  100M  413M  20% /boot
/dev/sdb2       9.0G  8.5G  500M  95% /var
$ lsblk -f
NAME   FSTYPE LABEL UUID                                 MOUNTPOINT
sda
├─sda1 ext4          a1b2c3d4-...                       /boot
└─sda2 ext4          e5f6g7h8-...                       /
sdb
├─sdb1 swap          1234-5678-...                      [SWAP]
└─sdb2 ext4          i9j0k1l2-...                       /var

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

Delete old log files in /var/log and clear package cache.

Option B is correct because the most common cause of a full /var partition is accumulated log files in /var/log and cached package data. Deleting old logs (e.g., via logrotate or manual cleanup) and clearing the package manager cache (e.g., apt-get clean or yum clean all) directly reclaims space without requiring disk resizing or additional hardware. This is the safest and fastest first step before considering more invasive actions.

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.

  • Move some files from /var to / and create a symbolic link.

    Why it's wrong here

    Moving system files could break services; not a best practice.

  • Delete old log files in /var/log and clear package cache.

    Why this is correct

    Log files and cached packages often consume large space and can be safely removed.

    Clue confirmation

    The clue word "first" in the question point toward this answer.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Increase the size of /dev/sdb2 using resize2fs.

    Why it's wrong here

    There is no unallocated space on sdb to expand sdb2.

  • Add a new disk and mount it to /var.

    Why it's wrong here

    While possible, it is not the first step; cleaning is simpler.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates often jump to resizing the partition or adding a disk (options C and D) because they think the problem requires a hardware or filesystem-level solution, when in fact the simplest and most appropriate first step is to clean up temporary and log files that can be safely removed.

Detailed technical explanation

How to think about this question

Under the hood, /var/log often contains rotated logs that are compressed but can accumulate over time; the logrotate utility manages this via cron, but manual intervention may be needed if rotation is misconfigured. Package managers like apt store downloaded .deb files in /var/cache/apt/archives, and 'apt-get clean' removes them, while 'yum clean all' removes cached RPM metadata and packages. In a real-world scenario, a sysadmin might first run 'du -sh /var/log/*' and 'du -sh /var/cache/*' to identify the largest consumers before taking action.

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.

TExam Day Tips

  • 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 exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

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FAQ

Questions learners often ask

What does this LPIC-1 question test?

GNU and Unix Commands — This question tests GNU and Unix Commands — Read the scenario before looking for a memorised answer..

What is the correct answer to this question?

The correct answer is: Delete old log files in /var/log and clear package cache. — Option B is correct because the most common cause of a full /var partition is accumulated log files in /var/log and cached package data. Deleting old logs (e.g., via logrotate or manual cleanup) and clearing the package manager cache (e.g., apt-get clean or yum clean all) directly reclaims space without requiring disk resizing or additional hardware. This is the safest and fastest first step before considering more invasive actions.

What should I do if I get this LPIC-1 question wrong?

Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.

Are there clue words in this question I should notice?

Yes — watch for: "first". Order matters here. You are being tested on which action comes before the others — not which action is generally useful.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jul 4, 2026

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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.