Question 225 of 522
Linux Installation and Package ManagementhardMultiple ChoiceObjective-mapped

LPIC-1 Linux Installation and Package Management Practice Question

This LPIC-1 practice question tests your understanding of linux installation and package management. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 system administrator is responsible for a production Debian 10 (buster) server that hosts a critical web application. The application requires the package 'libssl1.1' version 1.1.1 or higher, but the official Debian 10 repository only provides version 1.1.0. The administrator has already attempted to install the newer version from Debian 11 (bullseye) sources, but this caused dependency conflicts with the existing libc6 version. The server cannot be upgraded to Debian 11 due to application compatibility. The administrator needs to resolve this situation without breaking the existing system or introducing unofficial packages. Which of the following is the most appropriate course of action?

Question 1hardmultiple choice
Read the full NAT/PAT explanation →

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

Add the Debian Backports repository for buster and install libssl1.1 from there.

Option A is correct because Debian Backports provides newer versions of select packages (like libssl1.1) that are recompiled against the stable release's libraries (e.g., libc6 from buster), avoiding dependency conflicts. This allows the administrator to obtain libssl1.1 version 1.1.1 or higher without upgrading the entire system or introducing unofficial packages, maintaining system stability and security.

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.

  • Add the Debian Backports repository for buster and install libssl1.1 from there.

    Why this is correct

    Backports are specifically designed to provide newer versions of packages that are compatible with the stable release. This is the recommended way to get updated software without upgrading the entire distribution.

    Related concept

    Read the scenario before looking for a memorised answer.

  • Upgrade the entire system to Debian 11 using a rolling upgrade.

    Why it's wrong here

    The server cannot be upgraded due to application compatibility, and a rolling upgrade from buster to bullseye is not supported without a full release upgrade, which would likely break the critical application.

  • Use dpkg --force-depends to force the installation of libssl1.1 from Debian 11.

    Why it's wrong here

    Forcing installation ignores dependency checks and can leave the system with broken dependencies, potentially causing instability or security issues.

  • Download the libssl1.1 source package from Debian 11 and compile it on the buster system with custom flags.

    Why it's wrong here

    Compiling from source may introduce compatibility issues and is not a standard package management practice. It also creates maintenance overhead and bypasses package manager tracking.

Common exam traps

Common exam trap: answer the scenario, not the keyword

The trap here is that candidates may think compiling from source (Option D) is a safe workaround, but they overlook that the compiled binary will still depend on the older libc6 and may introduce subtle runtime issues, while the backports repository is the official, supported method for this exact scenario.

Detailed technical explanation

How to think about this question

Debian Backports works by taking packages from the next stable release (e.g., bullseye) and rebuilding them against the current stable release's library versions (e.g., buster's libc6). This ensures that the backported package's dependencies are satisfied by the existing system libraries, avoiding the 'dependency hell' that occurs when mixing repositories from different Debian releases. The backports repository is officially maintained and uses the same signing keys, so it is considered a trusted source for newer software without compromising system integrity.

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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.

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?

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: Add the Debian Backports repository for buster and install libssl1.1 from there. — Option A is correct because Debian Backports provides newer versions of select packages (like libssl1.1) that are recompiled against the stable release's libraries (e.g., libc6 from buster), avoiding dependency conflicts. This allows the administrator to obtain libssl1.1 version 1.1.1 or higher without upgrading the entire system or introducing unofficial packages, maintaining system stability and security.

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.

What is the key concept behind this question?

Read the scenario before looking for a memorised answer.

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Last reviewed: Jun 25, 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.