Week 8 Comprehension

Question 1

Which command is used to manually start a daemon –under SystemV?

• start
• service start
• systemctl start
• initctl start

Answer 1

-service start

Question 2

Find the match.

Graphical.target=Level 5
Rescue.target=Level 1
Multi-user.target=Level 3
Poweroff.target=Level 0

Answer 2

Graphical.target=Level 5
Rescue.target=Level 1
Multi-user.target=Level 3
Poweroff.target=Level 0

Question 3

Which statements are true? (Select two)

[root@server1 ~]# ls /etc/rc1.d

K08tomcat7 K20screen-cleanup K80etables s70dns-clean

K20postfix K20zfs-mount K85bind9 S70pppd-dns

• postfic daemon will be started when entering Level 1
• bind9 daemon will be stopped when entering Level 1
• dns-clean daemon will be started when entering Level 1
• zfs-mount daemon will be started when entering Level 1

Answer 3

• bind9 daemon will be stopped when entering Level 1

- dns-clean daemon will be started when entering Level 1

Question 4

Which command is used to manually start a daemon under systemd (systemd specific command)?

• start .service
• service .service status
• systemctl start .service
• initctl restart .service

Answer 4

-systemctl start .service

Question 5

What is the GRUB2 boot screen used for? (Select three)

• Specify a boot loader to load
• Obtain a prompt where you can enter GRUB2 configuration commands
• Select the kernel that you would like to boot
• Edit the entire boot configuration for the selected kernel

Answer 5

• Obtain a prompt where you can enter GRUB2 configuration commands
• Select the kernel that you would like to boot
• Edit the entire boot configuration for the selected kernel

Question 6

Which window manager does GNOME version 3 use?

• kwin
• metacity
• mutter
• twm

Answer 6

-mutter

Question 7

Put them in the correct order for booting and initializing a Linux system.

1. Load init daemon
2. Load Linux kernel
3. Load other daemons
4. Load GRUB2
5. Run POST

• 5, 4, 3, 2, 1
• 5, 2, 1, 4, 3
• 5, 4, 2, 3, 1
• 5, 4, 2, 1, 3

Answer 7

5, 4, 2, 1, 3

Question 8

Which command is used to update the grub.cfg file?

• grub2-config -o /boot/grub2/grub.cfg
• grub2-configmk -o /boot/grub2/grub.cfg
• grub2-mkconfig -o /boot/grub2/grub.cfg
• grub2-setconfig -o /boot/grub2/grub.cfg

Answer 8

-grub2-mkconfig -o /boot/grub2/grub.cfg

Question 9

Where is Grub2 bootloader executable file located at on a Fedora Linux system with UEFI and GPT?

• /boot/grub2/grubx64.efi
• /etc/grub2/grubx64.efi
• /boot/efi/EFI/fedora/grubx64.efi
• /etc/efi/EFI/FEDORA/GRUBX64.EFI

Answer 9

-/boot/efi/EFI/fedora/grubx64.efi

Question 10

What are daemons and runlevels called in systemd?

• unit services and unit targets
• target units and service units
• unit targets and unit services
• service units and target units

Answer 10

-service units and target units