Your customer is publically-funded university with approximately 13000 students and staff. The
university is also home to a number of gaining and information studies research groups. The
demand from researchers and students for access to servers is severely stretching the university
technical resources.
The university has started to use virtualization technology as approval for new physical servers
was denied. The virtualization technology enables the IT team to offer staff and students to 60
virtual servers. However the new functionality is still insufficient to meet demand. You suggest that
the university investigate moving to a small private cloud environment to streamline server
provisioning.
Students learn how to create maintain, or deploy operating systems, but is difficult to provide each
student with a server and let them experience how a server works. Currently a class of 25-30
students may only have one or two servers to share among the class for the semester. It is hard to
maintain the servers since before each semester all servers have to be reset. Virtualization is
used, but this still requires a lot of manpower.
Which Cloud delivery suits the university’s needs?

A.
PaaS

B.
CaaS

C.
IaaS

D.
SaaS

Explanation:
http://www.cloudtweaks.com/2012/07/collaboration-as-a-service-caas-cloud-computing/