XK0-006 Security Practice Question
A Linux administrator needs to add a new user named 'jdoe' with a home directory and default shell /bin/bash. Which command should be used?
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 -s /bin/bash jdoe
The useradd command is used to create new users. The -m option creates the home directory, and -s sets the shell. usermod modifies existing users, passwd sets passwords, and chage manages password aging.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
chage -m -s /bin/bash jdoe
Why it's wrong here
chage manages password aging, not user creation.
- ✓
useradd -m -s /bin/bash jdoe
Why this is correct
Correct. useradd with -m creates home directory and -s sets shell.
- ✗
passwd -m -s /bin/bash jdoe
Why it's wrong here
passwd changes passwords, not create users.
- ✗
usermod -m -s /bin/bash jdoe
Why it's wrong here
usermod modifies existing users, not create new ones.
Go deeper
Related to this question
Learn chapter
Linux Fundamentals and History
Key term
usermod
usermod is a Linux command that modifies existing user account settings like group membership, home directory, or login shell.
Key term
User
A user is any person, system, or device that interacts with an IT service, resource, or identity system, typically authenticated through credentials and authorized to perform specific actions.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This XK0-006 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 XK0-006 exam.