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[General] Check Out the Top Three Prep4sureExam XK0-006 Exam Questions Formats

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【General】 Check Out the Top Three Prep4sureExam XK0-006 Exam Questions Formats

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CompTIA Linux+ Certification Exam Sample Questions (Q29-Q34):NEW QUESTION # 29
A systems administrator attempts to edit a file as root, but receives the following error:

Which of the following commands allows the administrator to edit the file?
  • A. chgrp root /etc/resolv.conf
  • B. chmod 750 /etc/resolv.conf
  • C. chattr -i /etc/resolv.conf
  • D. chown root /etc/resolv.conf
Answer: C
Explanation:
The lsattr output shows the immutable (i) attribute set on /etc/resolv.conf. This prevents any modifications, even by root. Running chattr -i removes the immutable flag, allowing the administrator to edit the file.

NEW QUESTION # 30
A Linux administrator just finished setting up passwordless SSH authentication between two nodes. However, upon test validation, the remote host prompts for a password. Given the following logs:

Which of the following is the most likely cause of the issue?
  • A. The authorized_keysfile does not have the correct security context to match SELinux policy.
  • B. The administrator forgot to restart the SSHD after creating the authorized_keysfile.
  • C. The SELinux policy is incorrectly targeting the unconfined_ucontext.
  • D. The authorized_keysfile has the incorrect root permissions assigned.
Answer: A
Explanation:
The log shows avc: denied { read } caused by SELinux when sshd tries to access authorized_keys. The file has the wrong SELinux context (unconfined_ubject_r:home_root_t) instead of the expected context for SSH. This mismatch blocks SSH key authentication even though file permissions are correct. Adjusting the SELinux context (e.g., with restorecon) resolves the issue.

NEW QUESTION # 31
A Linux administrator receives reports about MySQL service availability issues. The administrator observes the following information:

Which of the following explains why the server was offline?
  • A. A network outage caused a service availability issue.
  • B. The process was intentionally terminated by a privileged user.
  • C. The process exhausted server memory.
  • D. The process crashed because of a filesystem error.
Answer: C
Explanation:
The logs show mysqld invoked oom-killer, which is the Linux Out-Of-Memory (OOM) killer. This indicates MySQL consumed too much memory, forcing the kernel to terminate it to protect the system, which caused the service outage.

NEW QUESTION # 32
A systems administrator needs to check the statuses of all the services on a Linux server. Which of the following commands accomplishes this task?
  • A. systemctl is-active --services
  • B. systemctl list-units --type-services
  • C. systemctl list-sockets --type-services
  • D. systemctl is-enabled --services
Answer: B
Explanation:
The systemctl list-units --type=service command displays all loaded service units and their statuses (running, exited, failed, etc.), allowing the administrator to check the state of all services on the server.

NEW QUESTION # 33
A systems administrator is deploying a web server using the following code:

Which of the following technologies is the administrator using to create this web server?
  • A. Chef
  • B. Puppet
  • C. Ansible
  • D. Terraform
Answer: A
Explanation:
The code uses Chef's Ruby DSL for defining a role with name, description, run_list, and default_attributes, which are constructs specific to Chef.

NEW QUESTION # 34
......
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