Question 1

An administrator needs a bootable USB for installing a new Linux machine. The administrator downloaded the

image file and named it as Linux_OS.iso in the /tmp directory. Which of the following commands will

accomplish that task?

Options :

A : dd input=/tmp/Linux_OS.iso of=/dev/sda bs=512

B : dd in=/tmp/Linux_OS.iso out=/dev/sdb bs=512

C : dd if=/tmp/Linux_OS.iso of=/dev/sda bs=512

D : dd if=/tmp/Linux_OS.iso out=/dev/sdb1 bs=512

Answer: C

Question 2

The dracut command is used to:

Options :

A : create initial RAMDisk images for preloading modules.

B : compile the Linux kernel images used to boot the OS.

C : create the bootloader executable files.

D : create the Boot Manager configuration files.

Answer: A

Question 3

A user is unable to execute the command sudo su -on a newly provisioned system. Which of the following should the Linux administrator do to allow the user to execute that command?

Options :

A : Change the user-s UID to 100

B : Add the user to the wheel group

C : Run restorecon to update SELinux contexts

D : Set the execute bit on the sudc command

Answer: B

Question 4

A Linux administrator built a GitLab server. Later that day, a software engineer tried to access the server to upload the repository during the final step of installation. The software engineer could not access the website. Which of the following firewall rules would allow access to this site?

Options :

A : iptables --A INPUT --p tcp --m multiport --dports 80,443 --m conntrack --cstate NEW, ESTABLISHED --j ACCEPT

B : iptables --A INPUT --p tcp --m multiport --dports 80,443 --m conntrack --cstate ESTABLISHED --j ACCEPT

C : iptables --A INPUT --p tcp --m multiport --dports 80,443 --m conntrack --cstate RELATED, ESTABLISHED --j ACCEPT

D : iptables --A INPUT --p tcp --m multiport --dports 80,443 --m conntrack --cstate NEW, ESTABLISHED --j REJECT

Answer: C

Question 5

A Linux administrator is confirming information on a system. The administrator issues a series of commands and gets the following output:

Other-Image-207b236a4-b257-4eb1-ba59-c87a9303ef44

Which of the following did the administrator issue?

Options :

A : Ismod | sort

B : dmesg | more

C : insmod video > dev/ttyS0

D : modprobe video ismod

Answer: A

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