126 - 150 Linux

Users have reported that the interactive sessions were lost on a Linux server. A Linux administrator verifies the server was switched to rescue.target mode for maintenance. Which of the following commands will restore the server to its usual target?

• telinit 0

• systemctl reboot

• systemctl get-default

• systemet! emergency

A systems administrator was tasked with assigning the temporary IP address/netmask 192.168.168.1/255.255.255.255 to the interface eth0 of a Linux server.

When adding the address, the following error appears:

# ip address add 192.168.168.1/33 dev ethO

Error: any valid prefix is expected rather than "192.168.168.1/33".

Based on the command and its output above, which of the following is the cause of the issue?

• The CIDR value /33 should be /32 instead.

• There is no route to 192.168.168.1/33.

• The interface eth0 does not exist.

• The IP address 192.168.168.1 is already in use.

A Linux user reported the following error after trying to connect to the system remotely: ssh: connect to host 10.0.1.10 port 22: Resource temporarily unavailable.

The Linux systems administrator executed the following commands in the Linux system while trying to diagnose this issue:

• firewall-cmd -zone=public -permanent -add-service=22

• systemetl enable firewalld; systemetl restart firewalld

• firewall-cmd --zone=public --permanent --add-service=ssh

• firewall-cmd -zone=public permanent -add-port=22/udp

A Linux administrator has been tasked with installing the most recent versions of packages on a RPM-based OS. Which of the following commands will accomplish this task?

• apt-get upgrade

• rpm -a

• yum updateinfo

• dnf update

• yum check-update

A Linux administrator needs to expand a volume group using a new disk. Which of the following options presents the correct sequence of commands to accomplish the task?

• partprobe

  vgcreate

  Ivextend

• Ivcreate

  fdisk

  partprobe

• fdisk

  partprobe

  mkfs

• fdisk

  pvcreate
  vgextend

Which of the following directories is the mount point in a UEFI system?

• /sys/efi

• /boot/efi

• /efi

• /ete/efi

A Linux administrator copied a Git repository locally, created a feature branch, and committed some changes to the feature branch. Which of the following Git actions should the Linux administrator use to publish the changes to the main branch of the remote repository?

• tebase

• tag

• commit

• push

A Linux administrator needs to obtain a list of all volumes that are part of a volume group. Which of the following commands should the administrator use to accomplish this task?

• vgs

• Ivs

• fdisk -1

• pvs

A Linux administrator is adding a new configuration file to a Git repository. Which of the following describes the correct order of Git commands to

accomplish the task successfully?

• pull > push > add -> checkout

• pull -> add -> commit ->push

• checkout -> push -> add -> pull

• pull -> add -> push -> commit

A systems administrator is tasked with mounting a USB drive on a system. The USB drive has a single partition, and it has been mapped by the system to the device /dev/sdb. Which of the following commands will mount the USB to /media/usb?

• mount /dev/sdb0 /media/usb

• mount /dev/sdb /media/usb

• mount -t usb /dev/sdb1 /media/usb

• mount /dev/sdb1 /media/usb