LPIC-1 Linux Installation and Package Management Practice Question
This LPIC-1 practice question tests your understanding of linux installation and package management. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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.
A sysadmin wants to prevent an APT package from being upgraded automatically but still allow it to be upgraded manually if needed. Which configuration method best achieves this?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "best"
Why it matters: Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use 'apt-mark hold <package>'
The `apt-mark hold <package>` command marks a package as held back, preventing it from being automatically upgraded during `apt upgrade` or `apt dist-upgrade`, while still allowing manual upgrades via `apt install <package>` or `apt-mark unhold`. This directly meets the requirement of blocking automatic upgrades but permitting manual intervention.
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.
✗
Set the package version to a non-existent version in /etc/apt/preferences
Why it's wrong here
This would cause errors and not reliably hold the package.
✓
Use 'apt-mark hold <package>'
Why this is correct
This marks the package as held, preventing automatic upgrades.
Clue confirmation
The clue word "best" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Add the package to /etc/apt/preferences with Pin-Priority: 1000
Why it's wrong here
This would force the package to be installed, not hold it.
✗
Remove the package from sources.list
Why it's wrong here
This would not prevent upgrades if the package is already installed from another source.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse `apt-mark hold` with pinning in `/etc/apt/preferences`, assuming a high Pin-Priority (like 1000) prevents upgrades, when in fact it only sets preference order and does not block automatic upgrades.
Detailed technical explanation
How to think about this question
Under the hood, `apt-mark hold` writes the package name to `/var/lib/apt/extended_states` with a `Hold` flag set to `Yes`. During dependency resolution, APT checks this flag and skips the package when calculating upgrade candidates, but manual `apt install` commands explicitly override the hold. This is commonly used in production to pin critical packages like kernels or databases to a specific version while still allowing controlled manual updates.
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 security administrator must allow nursing staff to reach a patient records server while blocking access from the guest Wi-Fi VLAN. After applying an extended ACL, traffic is still blocked from nursing workstations. The ACL was applied outbound instead of inbound on the wrong interface. Questions like this test ACL direction and placement rules.
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.
Linux Installation and Package Management — This question tests Linux Installation and Package Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use 'apt-mark hold <package>' — The `apt-mark hold <package>` command marks a package as held back, preventing it from being automatically upgraded during `apt upgrade` or `apt dist-upgrade`, while still allowing manual upgrades via `apt install <package>` or `apt-mark unhold`. This directly meets the requirement of blocking automatic upgrades but permitting manual intervention.
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: "best". Signals that multiple options may be partially correct. Choose the option that most directly solves the exact problem described, not the one that sounds most complete.
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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