XK0-005 Free Practice Test

A Linux engineer needs to download a ZIP file and wants to set the nice of value to -10 for this new process. Which of the following commands will help to accomplish the task?

1. A. $ nice -v -10 wget https://foo.com/installation.zip
2. B. $ renice -v -10 wget https://foo.com/installation.2ip
3. C. $ renice -10 wget https://foo.com/installation.zip
4. D. $ nice -10 wget https://foo.com/installation.zip

Correct Answer: D

A systems administrator is tasked with setting up key-based SSH authentication. In which of the following locations should the administrator place the public keys for the server?

1. A. ~/.sshd/authkeys
2. B. ~/.ssh/keys
3. C. ~/.ssh/authorized_keys
4. D. ~/.ssh/keyauth

Correct Answer: C

A Linux administrator is scheduling a system job that runs a script to check available disk space every hour. The Linux administrator does not want users to be able to start the job. Given the following:

The Linux administrator attempts to start the timer service but receives the following error message:

Which of the following is MOST likely the reason the timer will not start?

1. A. The checkdiskspace.timer unit should be enabled via systemctl.
2. B. The timers.target should be reloaded to get the new configuration.
3. C. The checkdiskspace.timer should be configured to allow manual starts.
4. D. The checkdiskspace.timer should be started using the sudo command.

Correct Answer: C

A Linux administrator is alerted to a storage capacity issue on a server without a specific mount point or directory. Which of the following commands would be MOST helpful for troubleshooting? (Choose two.)

1. A. parted
2. B. df
3. C. mount
4. D. du
5. E. fdisk
6. F. dd
7. G. ls

Correct Answer: BD

A systems administrator needs to reconfigure a Linux server to allow persistent IPv4 packet forwarding. Which of the following commands is the correct way to accomplish this task?

1. A. echo 1 > /proc/sys/net/ipv4/ipv_forward
2. B. sysctl -w net.ipv4.ip_forward=1
3. C. firewall-cmd --enable ipv4_forwarding
4. D. systemctl start ipv4_forwarding

Correct Answer: B