Free XK0-006: CompTIA Linux+ Exam Questions and Answers

A web server running Apache httpd on a RHEL system returns 403 Forbidden for pages that were moved to a new document root, /srv/web. The file permissions and Apache configuration are correct. The administrator finds the following in /var/log/audit/audit.log: type=AVC msg=audit(1760354112.481:312): avc: denied { read } for pid=2214 comm="httpd" name="index.html" dev="dm-0" ino=1048771 scontext=system_u:system_r:httpd_t:s0 tcontext=unconfined_u:object_r:default_t:s0 tclass=file permissive=0 Which of the following actions will resolve the issue while keeping SELinux in enforcing mode? (Choose two.)

Select 2 answers.

• AA. setenforce 0
• BB. setsebool -P httpd_read_user_content on
• CC. restorecon -Rv /srv/web
• DD. semanage fcontext -a -t httpd_sys_content_t "/srv/web(/.*)?"

A systems administrator runs the following Python script on a server: import subprocess result = subprocess.run(["df", "-h", "/"], capture_output=True, text=True) print(result.stdout.splitlines()[1].split()[4]) Running df -h / directly prints: Filesystem Size Used Avail Use% Mounted on /dev/sda2 50G 21G 27G 44% / Which of the following is the output of the script?

• AA. /
• BB. /dev/sda2
• CC. 44%
• DD. 27G

Which of the following BEST describes the accounting function of an AAA framework?

• AA. Determining which files and commands a user is permitted to use
• BB. Verifying a user's identity with a password or token
• CC. Protecting credentials as they travel between client and server
• DD. Recording user activity and resource consumption for later review

Match each network troubleshooting task with the command that performs it. Each command is used once. Tasks: Task 1: Display each router hop between the server and a remote host Task 2: List listening TCP sockets and the processes that own them Task 3: Query the DNS records for a hostname Task 4: Show the IP addresses assigned to each interface Commands: Item A: dig Item B: ip addr show Item C: traceroute Item D: ss -tlnp

Drag or tap each item onto its target, then reveal.

Users report that an application server has become very slow. A Linux administrator runs vmstat and sees the following: procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 1 4 2048000 41200 1100 88000 920 1480 1200 1600 610 980 4 6 8 82 0 Which of the following is the MOST likely cause of the slowdown?

• AA. Insufficient physical memory causing heavy swapping
• BB. A runaway process saturating all CPU cores
• CC. A failing disk that is returning read errors
• DD. Network congestion delaying access to remote storage

A file named /etc/app.conf exists and has mode 0600 with root as owner and group. A standard user named tkim runs the following script: try: with open("/etc/app.conf") as f: data = f.read() print("loaded") except FileNotFoundError: print("missing") except PermissionError: print("denied") Which of the following is the output?

• AA. loaded
• BB. A PermissionError traceback
• CC. denied
• DD. missing

A Linux administrator tries to create a second name for /home/sam/report.txt in the backup volume, which is a separate filesystem mounted at /mnt/backup, and receives the following output: $ ln /home/sam/report.txt /mnt/backup/report.txt ln: failed to create hard link '/mnt/backup/report.txt' => '/home/sam/report.txt': Invalid cross-device link Which of the following commands should the administrator run to create a reference to the file in the backup volume?

• AA. ln -f /home/sam/report.txt /mnt/backup/report.txt
• BB. cp -l /home/sam/report.txt /mnt/backup/report.txt
• CC. ln -L /home/sam/report.txt /mnt/backup/report.txt
• DD. ln -s /home/sam/report.txt /mnt/backup/report.txt

An employee named jlee is on extended leave. A systems administrator needs to prevent jlee from logging in with a password while keeping the account and its home directory intact. Which of the following commands should the administrator use?

• AA. passwd -d jlee
• BB. chage -d 0 jlee
• CC. userdel jlee
• DD. usermod -L jlee

A Linux administrator runs find / -name "*.conf" as a standard user and wants all output, including the permission denied messages, saved to results.txt. Which of the following redirections should the administrator append to the command?

• AA. 2>&1 > results.txt
• BB. 1> results.txt
• CC. 2> results.txt
• DD. > results.txt 2>&1

A Linux administrator needs to review the messages the kernel generated during boot about hardware detection and driver loading. Which of the following commands should the administrator use?

• AA. dmesg
• BB. lspci -v
• CC. dmidecode -t system
• DD. lsmod