- A
/usr/bin
Why wrong: /usr/bin contains non-essential user binaries, not guaranteed in single-user mode.
- B
/sbin
Why wrong: /sbin contains system administration binaries.
- C
/opt/bin
Why wrong: /opt is for optional software, not essential.
- D
/bin
Correct: /bin contains essential user binaries.
Question 409 of 1,000
XK0-005 System Management Practice Question
This XK0-005 practice question tests your understanding of system management. 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 directory in the FHS contains essential user command binaries that are needed in single-user mode?
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
✓
/bin
Option D is correct because the /bin directory, as defined by the Filesystem Hierarchy Standard (FHS), contains essential user command binaries (e.g., ls, cp, mv) that are required for booting, repairing, and operating the system in single-user mode. Single-user mode mounts only the root filesystem, so /bin must be on the root partition to provide these critical utilities without relying on other filesystems like /usr.
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.
- ✗
/usr/bin
Why it's wrong here
/usr/bin contains non-essential user binaries, not guaranteed in single-user mode.
- ✗
/sbin
Why it's wrong here
/sbin contains system administration binaries.
- ✗
/opt/bin
Why it's wrong here
/opt is for optional software, not essential.
- ✓
/bin
Why this is correct
Correct: /bin contains essential user binaries.
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 confuse /sbin with /bin, assuming all essential binaries are in /sbin, but /sbin is specifically for system administration tools, while /bin holds the user command binaries required in single-user mode.
Detailed technical explanation
How to think about this question
Under the FHS, /bin is a required directory on the root filesystem, ensuring that critical commands like mount, bash, and cat are accessible even when /usr is not mounted. In modern Linux distributions, /bin is often a symbolic link to /usr/bin (e.g., in Fedora or Arch), but the FHS still mandates that the essential binaries reside on the root partition for single-user and emergency modes. This distinction is crucial during system recovery, where you might need to repair a broken /usr mount using only tools from /bin.
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 XK0-005 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 XK0-005 question test?
System Management — This question tests System Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: /bin — Option D is correct because the /bin directory, as defined by the Filesystem Hierarchy Standard (FHS), contains essential user command binaries (e.g., ls, cp, mv) that are required for booting, repairing, and operating the system in single-user mode. Single-user mode mounts only the root filesystem, so /bin must be on the root partition to provide these critical utilities without relying on other filesystems like /usr.
What should I do if I get this XK0-005 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: Jul 4, 2026
This XK0-005 practice question is part of Courseiva's free CompTIA 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 XK0-005 exam.
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