5 interview questions for a system administrator

I would like to write a series of questions that can be asked in for a sysadmin position.
First, I would like to introduce myself. My name is anthony, and I am from the team of www.find1job.com. If you are looking for an IT job don't hesitate to post an announce and submit your CV with us http://www.find1job.com/postad/employee/postadv.html


Linux Questions:

How to create a symbolic link ?
ln -s

How to reset a password for a CentOS operating system ?

Boot with the CentOS CD,
Then run ls /dev/sda* to get a list of the drives
mount them, then try to see which one is the / drive (it should contains the /etc directory). change to this drive with chroot, then run passwd command

Windows questions:
How to clean the active directory from a domain controller that had a hardware failure ?
First, if it has one of the 5 roles, I have to seize the roles with another domain controller, then I have to use the ntdsutil command line to remove the failed domain controller form the active directory.

How do I use a domain local group and global group ?
Global group should be related to departments or team. For example, i create a global group for accountants, i create a global group from system admin, another global group for database admin.
Domain local group can be used to assign permissions to ressource (Files,Folders and printers..)
So I assign permission to domain local group (maybe 1 for read only and 1 for read and write), then I add the global group that need access to the specific resource inside that domain local group

 Exchange Server 2010
How to clear the transaction log files for a specific database ?
Backup this datbase

If you are looking for a job as system administrator, or a network administrator. If you are searching a job in IT field. We invite you to post an announce in our recruitment website. It is a totally free website . Our website is not only free for employees, but it is also free for employers. http://www.find1job.com/postannounce.html

I hope this was helpful and I would to thank you for reading.