Question 1

Which command is used to display detailed information about a certain user's account including its group memberships, the date and time of the last successful login, and the location of that user's home directory?

Options :

A : usermod

B : userdel

C : chage

D : id

Answer: D

Question 2

You've been tasked with troubleshooting a performance issue on a Linux server running Oracle Linux 8. You notice that the CPU usage is high, even though the server has a multi-core CPU with hyper-threading enabled and you have checked that the server has all the necessary performance-tuning parameters set in the /etc/sysctl.conf file, such as vm.dirty_ratio = 10 and vm.dirty_background_ratio = 5. What other options should you check to troubleshoot this issue?

Options :

A : Check if you have the latest version of the Linux kernel installed

B : Check if the CPU is running hot

C : Check if there are any cron jobs or background processes running on the server that are consuming CPU resources

D : Check if there are any processes on the server that are stuck in an uninterruptible state

Answer: C

Question 3

Which two commands relabel an SELinux system after a reboot?

Options :

A : Set kernel parameter autorelabel=0

B : fixfiles -F relabel

C : echo “relabel=1” > /.selinux

D : touch /.autorelabel

E : Set kernel parameter selinux=0

F : fixfiles -F onboot

Answer: D,F

Question 4

Which of the following is an example of a best practice for managing user accounts and access on Oracle Linux 8?

Options :

A : Granting full administrative privileges to all users

B : Using weak passwords for user accounts

C : Enforcing password complexity requirements

D : Allowing all users to have the same password

Answer: C

Question 5

Which command is used to install Oracle Linux 8?

Options :

A : yum install oracle-linux-8

B : apt install oracle-linux-8

C : dnf install oracle-linux-8

D : rpm install oracle-linux-8

Answer: C