What are the differences between mandatory access controls and discretionary access controls? is there any advantage to using one over the other?

professionals can use many types of technology that can them. some examples are, computers (they research and can use for programs for data, they are also used for job applications, school work, and even to make new ideas), speedometers (can get data for unknown data), sometimes something as small as a pen (used for rough drafts, to insert data, and again job applications).

multicast scope

superscope

failover scope

split-scope