You will need working knowledge of LAMP troubleshooting and general Unix commands. They use a lot of Tomcat so that may help to know about. "If a customer's website is down, walk me through the steps of finding out why." "What would you do if a VM was unresponsive to ping, but sister VM's were not?" I was also asked things such as, "What was a difficult customer interaction for you?" "What do you know about IPSoft?" "What do you know about the services we provide?" "Why do you think you're a good fit for this role?"
