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[General] Valid Dumps XK0-006 Free & Latest XK0-006 Test Objectives

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【General】 Valid Dumps XK0-006 Free & Latest XK0-006 Test Objectives

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CompTIA Linux+ Certification Exam Sample Questions (Q11-Q16):NEW QUESTION # 11
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 has the incorrect root permissions assigned.
  • B. The authorized_keysfile does not have the correct security context to match SELinux policy.
  • C. The administrator forgot to restart the SSHD after creating the authorized_keysfile.
  • D. The SELinux policy is incorrectly targeting the unconfined_ucontext.
Answer: B
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 # 12
A user on a Linux VM is running /work/test.shBash script and receives the following error:
bash: /work/test.sh: Permission denied
After further investigation, the user receives the following outputs:

Which of the following commands should a systems administrator run to fix the issue?
  • A. mount -o remount,exec /work
  • B. chmod o+x /work/test.sh
  • C. chmod g+x /work/test.sh
  • D. mount -o remount,suid /work
Answer: A
Explanation:
The script /work/test.sh already has execute permissions (-rwxr--r--), but the filesystem is mounted with the noexec option, which prevents execution of binaries and scripts. Remounting the filesystem with the exec option allows execution of the script.

NEW QUESTION # 13
In the echo "profile-$num-$name"line of a shell script, the variable $numseems to not be expanding during execution. Which of the following notations ensures the value is expanded?
  • A. echo "profile-'Snum'-$name"
  • B. echo 'profile-$num-$name'
  • C. echo "profile-${num}-$name"
  • D. echo "profile-$(num)-$name"
Answer: C
Explanation:
Using ${num} ensures correct variable expansion, especially when variables are adjacent to other characters or hyphens. This prevents ambiguity and guarantees $num is properly expanded within the string.

NEW QUESTION # 14
A Linux systems administrator is resolving a privileged access issue for users who are members of an admin group. Which of the following configuration files should the administrator update so the users in the admin group will have root privileged access to the Linux system?
  • A. /etc/sudoers
  • B. /etc/login.defs
  • C. /etc/group
  • D. /etc/shadow
Answer: A
Explanation:
The /etc/sudoersfile controls which users and groups can elevate privileges via sudo. By adding a line such as %admin ALL=(ALL) ALLto /etc/sudoers, members of the admin group gain root-level access.

NEW QUESTION # 15
Which of the following commands should an administrator use to see a full hardware inventory of a Linux system?
  • A. lscpu
  • B. dmidecode
  • C. dmesg
  • D. lsmod
Answer: B
Explanation:
dmidecode retrieves detailed hardware information from the system's DMI/SMBIOS, including BIOS, CPU, memory, and motherboard details, providing a full hardware inventory.

NEW QUESTION # 16
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