This LPIC-1 practice question tests your understanding of system architecture. 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 junior admin is tasked with configuring network bonding on a Debian server with two Ethernet interfaces, eth0 and eth1. The goal is to provide link redundancy using active-backup mode. The admin edits /etc/network/interfaces and adds configuration for bond0 with slaves eth0 eth1, then runs 'ifup bond0'. However, the bond interface fails to come up and the error message indicates that the 'bond' kernel module is not loaded. The admin checks with 'lsmod | grep bonding' and finds no output. Which additional step is required to successfully bring up the bond interface? Options: A) Run 'modprobe bonding' before ifup, B) Add 'auto bond0' in /etc/network/interfaces, C) Use ifenslave directly after ifup, D) Reboot the system to load the module.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Run 'modprobe bonding' before ifup
Option A is correct because the bonding module must be loaded before the bond interface can be created. 'modprobe bonding' loads the kernel module. Option B is irrelevant; 'auto' ensures interface starts at boot but doesn't load the module. Option C is unnecessary if bonding is configured via interfaces; ifenslave is for manual bonding. Option D is overkill; rebooting may load the module if configured, but loading manually is quicker. So A is correct.
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.
✓
Run 'modprobe bonding' before ifup
Why this is correct
Loads the bonding kernel module, enabling bond interface creation.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use ifenslave directly after ifup
Why it's wrong here
ifenslave is for manual bonding when the master is already created; not needed with ifup config.
✗
Reboot the system to load the module
Why it's wrong here
Rebooting may work but is unnecessary; modprobe is immediate.
✗
Add 'auto bond0' in /etc/network/interfaces
Why it's wrong here
This only ensures bond0 starts at boot; does not load the module now.
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.
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: Run 'modprobe bonding' before ifup — Option A is correct because the bonding module must be loaded before the bond interface can be created. 'modprobe bonding' loads the kernel module. Option B is irrelevant; 'auto' ensures interface starts at boot but doesn't load the module. Option C is unnecessary if bonding is configured via interfaces; ifenslave is for manual bonding. Option D is overkill; rebooting may load the module if configured, but loading manually is quicker. So A is correct.
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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