XK0-005 Practice Test

A Linux administrator is creating a primary partition on the replacement hard drive for an application server. Which of the following commands should the administrator issue to verify the device name of this partition?

A.

sudo fdisk /dev/sda

B.

sudo fdisk -s /dev/sda

C.

sudo fdisk -l

D.

sudo fdisk -h

A cloud engineer needs to block the IP address 192.168.10.50 from accessing a Linux server. Which of the following commands will achieve this goal?

A.

iptables -F INPUT -j 192.168.10.50 -m DROP

B.

iptables -A INPUT -s 192.168.10.30 -j DROP

C.

iptables -i INPUT --ipv4 192.168.10.50 -z DROP

D.

iptables -j INPUT 192.168.10.50 -p DROP

Which of the following tools is BEST suited to orchestrate a large number of containers across many different servers?

A.

Kubernetes

B.

Ansible

C.

Podman

D.

Terraform

An administrator is trying to diagnose a performance issue and is reviewing the following output:

System Properties:
CPU: 4 vCPU
Memory: 40GB
Disk maximum IOPS: 690
Disk maximum throughput: 44Mbps | 44000Kbps
Based on the above output, which of the following BEST describes the root cause?

A.

The system has reached its maximum IOPS, causing the system to be slow

B.

The system has reached its maximum permitted throughput, therefore iowait is increasing.

C.

The system is mostly idle, therefore the iowait is high.

D.

The system has a partitioned disk, which causes the IOPS to be doubled.

A systems administrator is tasked with installing GRUB on the legacy MBR of the SATA hard drive. Which of the following commands will help the administrator accomplish this task?

A.

grub-install /dev/hda

B.

grub-install /dev/sda

C.

grub-install /dev/sr0

D.

grub-install /dev/hd0,0