Change runlevels and Shutdown

Question 1

What run level is single user mode?

Answer 1

1

Question 2

What run level is used to shut down a computer?

Answer 2

0

Question 3

Which distro uses run level 2?

Answer 3

Debian

Question 4

Which distro uses run level 3?

Answer 4

Fedora, Mandriva, Red Hat (non graphical login)

Question 5

Which distro uses run level 4?

Answer 5

Custom and not defined

Question 6

Which distro uses run level 5?

Answer 6

Fedora, Mandriva, Red Hat (graphical login)

Question 7

What uses run level 6?

Answer 7

Reboot computer

Question 8

Which file hold the programs run at various run levels?

Answer 8

/etc/inittab

Question 9

What two commands display the runlevel?

Answer 9

runlevel and who -r

Question 10

What letter is the first letter in the filename to stop a script at runlevel?

Answer 10

K

Question 11

What letter is the first letter in the filename to start a script at runlevel?

Answer 11

S

Question 12

How are the script run in the correct order for runlevel?

Answer 12

They are numbered

Question 13

What are the SysV folders?

Answer 13

/etc/rc0.d

Question 14

What command will check list services and their applicable runlevels?

Answer 14

chkconfig

Question 15

What command will start a service at a particular runlevel?

Answer 15

chkconfig –level xxx service on

Question 16

What command will stop a service at a particular runlevel?

Answer 16

chkconfig –level xxx service off

Question 17

What command will add a script at runlevel?

Answer 17

chkconfig –add script_name

Question 18

What is used to manage runlevels in Red Hat, Fedora and Mandriva?

Answer 18

ntsysv

Question 19

If you typed in runlevel and saw the output N 2 - what does the N stand for?

Answer 19

Not changed run level since boot?

Question 20

What does the command init do?

Answer 20

Change runlevel

Question 21

Why is telinit different from init?

Answer 21

It will reread the /etc/inittab

Question 22

What command will shutdown the computer in 10 minutes time?

Answer 22

shutdown -h +10 “system shutdown in 10 minutes”

Question 23

What individual command will immediately shutdown the computer with no warning?

Answer 23

halt or init 0