The answer is a corrupted kernel image, missing device drivers for storage controllers, and a faulty initramfs. A corrupted kernel image causes a kernel panic during boot because the bootloader loads the binary into memory, and if it is damaged—from disk errors or an incomplete update—the CPU attempts to execute invalid instructions, triggering a fatal halt during early integrity checks. Missing storage drivers prevent the kernel from mounting the root filesystem, leading to a panic when it cannot locate essential system binaries. On the LPIC-2 exam, this topic tests your understanding of the boot process under Objective 202.1, often appearing in multiple-select questions where a common trap is confusing a kernel panic with a simple bootloader error. Remember the mnemonic "KIM" for Kernel, Image, and Modules—each must be intact, present, and loadable to avoid a panic.
LPIC-2 Linux Kernel and System Startup Practice Question
This LPIC-2 practice question tests your understanding of linux kernel and system startup. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
Which THREE factors can cause a kernel panic during boot? (Select THREE.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Corrupted kernel image
A corrupted kernel image (Option B) is a direct cause of kernel panic during boot because the bootloader (e.g., GRUB) loads the kernel into memory, and if the binary is damaged (e.g., due to disk errors or incomplete update), the CPU will attempt to execute invalid instructions, triggering a fatal kernel panic. The kernel performs integrity checks early in startup, and any mismatch between expected and actual code will halt the system with a panic message.
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.
✗
Too many kernel modules loaded
Why it's wrong here
Too many modules may cause memory issues but not a panic directly.
✓
Corrupted kernel image
Why this is correct
A corrupted vmlinuz or bzImage can cause a panic during decompression or execution.
Related concept
Read the scenario before looking for a memorised answer.
✓
Hardware incompatibility
Why this is correct
Hardware that triggers a bug or unsupported feature can cause a panic.
Related concept
Read the scenario before looking for a memorised answer.
✗
Filesystem errors on the root partition
Why it's wrong here
Filesystem errors typically cause a mount failure, not a kernel panic.
✓
Missing device drivers for storage controllers
Why this is correct
If the kernel cannot access the root filesystem due to missing drivers, it may panic.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse 'kernel panic' with 'boot failure' and incorrectly select filesystem errors (Option D) as a direct cause, when in fact filesystem issues typically lead to a recovery shell or initramfs failure, not a kernel panic.
Detailed technical explanation
How to think about this question
A kernel panic is a safety mechanism invoked by the kernel when it encounters a fatal, unrecoverable error, such as an attempt to access invalid memory (page fault in kernel space) or a critical hardware failure. During boot, the kernel initializes essential subsystems (e.g., memory management, interrupt handlers) and if a corrupted kernel image causes an illegal opcode or triple fault, the CPU triggers a machine check exception that the kernel cannot handle, leading to a panic. Real-world scenarios include a failed kernel update where the vmlinuz file is truncated or a bad sector on the boot partition corrupts the kernel binary.
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.
Linux Kernel and System Startup — This question tests Linux Kernel and System Startup — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Corrupted kernel image — A corrupted kernel image (Option B) is a direct cause of kernel panic during boot because the bootloader (e.g., GRUB) loads the kernel into memory, and if the binary is damaged (e.g., due to disk errors or incomplete update), the CPU will attempt to execute invalid instructions, triggering a fatal kernel panic. The kernel performs integrity checks early in startup, and any mismatch between expected and actual code will halt the system with a panic message.
What should I do if I get this LPIC-2 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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Question Discussion
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