1. Describe at least 3 physical components of virtual infrastructure and what role each of them component servers?
2. Please explain, what is the ability to fast migrate virtual guest machines from one data center to another for high availability and disaster recovery. Also, what network challenges are presented when virtual machines are moved from one data center to another and what technologies are available in the market to help resolve these challenges?
3. Describe at least 3 things which can be done to secure/protect or maintain the security in a virtual infrastructure?
4. Please explain, what is the write cache and how does it improve the disk performance in a virtual environment?