- A
useradd -m -d /home/contractors/tempuser -s /bin/bash -G contractors tempuser
Why wrong: -G adds supplementary groups, not primary group; the primary group would default.
- B
useradd -m -h /home/contractors/tempuser -s /bin/bash -g contractors tempuser
Why wrong: -h is not a valid useradd option; it is used with userdel.
- C
useradd -m -d /home/contractors/tempuser -s /bin/bash -p contractors tempuser
Why wrong: -p sets password (usually encrypted), not group.
- D
useradd -m -d /home/contractors/tempuser -s /bin/bash -g contractors tempuser
Correct syntax: -m creates home if missing, -d sets home path, -s sets shell, -g sets primary group.
Question 476 of 513
LFCS User and Group Management Practice Question
This LFCS practice question tests your understanding of user and group 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.
A system administrator needs to create a user account for a temporary contractor. The account should have a home directory under /home/contractors, the login shell should be /bin/bash, and the user should be a member of the 'contractors' group. Which command accomplishes this?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"which command"Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
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
✓
useradd -m -d /home/contractors/tempuser -s /bin/bash -g contractors tempuser
Option D is correct because the `-g` flag specifies the primary group for the user, which in this case is 'contractors'. The `-m` flag creates the home directory, `-d` sets the home directory path to `/home/contractors/tempuser`, and `-s` sets the login shell to `/bin/bash`. This satisfies all requirements: the user 'tempuser' will have a home directory under `/home/contractors`, use `/bin/bash` as their shell, and be a member of the 'contractors' group as their primary group.
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.
- ✗
useradd -m -d /home/contractors/tempuser -s /bin/bash -G contractors tempuser
Why it's wrong here
-G adds supplementary groups, not primary group; the primary group would default.
- ✗
useradd -m -h /home/contractors/tempuser -s /bin/bash -g contractors tempuser
Why it's wrong here
-h is not a valid useradd option; it is used with userdel.
- ✗
useradd -m -d /home/contractors/tempuser -s /bin/bash -p contractors tempuser
Why it's wrong here
-p sets password (usually encrypted), not group.
- ✓
useradd -m -d /home/contractors/tempuser -s /bin/bash -g contractors tempuser
Why this is correct
Correct syntax: -m creates home if missing, -d sets home path, -s sets shell, -g sets primary group.
Clue confirmation
The clue word "which command" in the question point toward this answer.
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 `-g` (primary group) with `-G` (supplementary groups), leading them to choose Option A, which adds the user to the group but does not set it as the primary group, failing the requirement that the user 'be a member of the contractors group' in the context of primary group membership.
Detailed technical explanation
How to think about this question
The `useradd` command reads default values from `/etc/default/useradd` and `/etc/login.defs`, which can affect home directory creation and shell defaults. The `-g` flag sets the primary group, which is stored in `/etc/passwd` as the GID; the group must already exist (e.g., created with `groupadd contractors`). In real-world scenarios, using `-G` instead of `-g` would cause the user to have a different primary group, potentially leading to permission issues if the contractor needs to share files with other group members via group ownership.
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 LFCS 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.
- →
User and Group Management — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this LFCS question test?
User and Group Management — This question tests User and Group Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: useradd -m -d /home/contractors/tempuser -s /bin/bash -g contractors tempuser — Option D is correct because the `-g` flag specifies the primary group for the user, which in this case is 'contractors'. The `-m` flag creates the home directory, `-d` sets the home directory path to `/home/contractors/tempuser`, and `-s` sets the login shell to `/bin/bash`. This satisfies all requirements: the user 'tempuser' will have a home directory under `/home/contractors`, use `/bin/bash` as their shell, and be a member of the 'contractors' group as their primary group.
What should I do if I get this LFCS 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: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
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
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