Backup Exec 2012 and NetBackup

Hi,

I have recently purchased  Backup exec 2012 which is already taking backup for few of the servers and i need to take backup for UNIX server. I know Backup Exec does not support UNIX and have to go with NetBackup in order to protect UNIX server.

Can i have Netbackup along with Backup Exec in same environment?

I have one tape drive in environement which is already in used with backup Exec. Can i use same Tape drive for Netbackup in same environement and does it also need a license?

Thanks