What is a form of impersonal, sponsor paid, one-way mass communication?

Which of the following is a disadvantaged of a high degree of managerial mobility between companies?

a) decrease in entrepreneurship b) executives are not exposed to different ways of doing busines c) lack of loyalty and commitment to an individual company d) stagnation of the economy

Which methodology could cloud data storage utilize to encrypt all data associated in an infrastructure as a service (IaaS) deployment model?

A Sandbox encryption B Polymorphic encryption C Client-side encryption D Whole-instance encryption