What is a drawback of having a high number of legacy applications in rigid siloes on separate
infrastructure islands?

A.
It is difficult for IT to perform system maintenance task with business users.

B.
It is difficult for IT to provide accurate assessments of the server and storagerequirements and
manage software updates

C.
It is difficult for IT to maintain service level agreements and keep up with the speed of business.

D.
It is difficult for IT to predict resource requirements on a three-year rolling plan.