Question 1

Which command can you use to print a list of all network interfaces attached to the system, including unconfigured addresses and interfaces that are down?

Options :

A : ifconfig -a

B : ipconfig -all

C : netstat -i

D : route -n

Answer: A

Question 2

Which command can be used to create a new Kubernetes namespace on an Oracle Linux 8 system?

Options :

A : kubectl apply -f new-namespace.yaml

B : kubectl create namespace new-namespace

C : sudo mkdir /etc/kubernetes/namespaces/new-namespace

D : kubectl edit configmap new-namespace

Answer: B

Question 3

What is the command that can be used to mount an Ext4 filesystem as read-only at boot time?

Options :

A : mount -a -t ext4 -o remount,ro /dev/sda1 /mnt/point

B : tune2fs -O read-only /dev/sda1

C : mount -t ext4 -o defaults,rw /dev/sda1 /mnt/point

D : echo '/dev/sda1 /mnt/point ext4 defaults,ro 0 0' >> /etc/fstab

Answer: D

Question 4

You are troubleshooting a performance issue on an Oracle Linux 8 server. You suspect that one of the system processes is consuming excessive CPU resources. Which command can you use to identify the process with the highest CPU usage?

Options :

A : top

B : ps

C : htop

D : lsof

Answer: A

Question 5

Which command is used to remove a user from a group in Oracle Linux 8?

Options :

A : usermod -G

B : userdel -r

C : groupdel

D : gpasswd -d

Answer: D