Can anybody answer the following interview questions?

Benajmin

Linux/ Unix administrator interview questions:

1.  When your system is crushed, how do you get into Single User Mode to trouble shooting? Is there any commands you can choose? ( This is for Red hat Linux)
2.  How do you assign IP address for your system ? How do you change it for temporary use and permanent?( for both Unix and redhat Linux)
3.  If you lose root password, how do you do to recover it to get into your system? ( for both Unix and redhat Linux)
4.  What command do you use to see system parameter? ( There is only one can use)???????????(This one could be wrong, I am not sure)
5.  In a distributed environment, you find a hard disk is failed under your LVM, how do you fix it , remenber that you can not shut down your system, you have to make some changs in the same time system is runing?
6.  If one or two disks in you LVM died, how can you diagnosticate to find problem?
7.  How do you tuned you system? Is there any commands can you choose for sytem tuning?
8.  How do you monitoring your system and network? Is there any particular tools have you used or do you know about it?
9.  What is the difference between Redhat AS and ES, and version 3 and 4?
10.  What is LILO and GRUB?
11.  How much do you know about Varitas Cluster Server?
12.  How do you assign or restrict  file space for user ?

xiaozhistar

Your English is very Good!  But my Chinese is very Good!
Very pity! If you've lost your boot password,i think it's no way to recover it. I' ve encountered the problem like you said.
Lilo and  GRUB are the boot loading system,and GRUB is better than  Lilo.
OK! My experence is limited.
If you want to get in touch with me ,i can tell you my QQ number:
273878767 or 122480911.

Benajmin

Thank you. I think my English is just So So for performs job in English environment.

I agree with you . We cannot get root passwd back.  The only way is boot from cdrom then go to single user mode, change /etc/password or /etc/shadow file, and reboot the system, give new passwd.

About the LILO and GRUB, I know both of them are boot loader, how can you say CRUB is better?

I prefer send E-mail if you feel good. My E-mail is benlu369@yahoo.com, you can use Chinese. I use English is because I am not good at typing Chinase and my working environment is English.

Hope can get your mail with some questions answered. Thank you!