Answer: Discretionary access control (DAC)
Explanation: Discretionary access control is the control system that is imposed over the information system. The information systems contains different objects and subjects that gets the permission to do the operations.
The operation which the components can do are sharing the data to other object or subjects, privilege providence, change in the rules for the access, security entities getting changed etc.
Answer:
Best: 1 or 4
Worst: 3
Explanation:
I'm not sure if number one is imply to ask your coworker to explain it or actually help with the workload. I think 4 would be the right answer because that is what they are there for and you don't want to distract your coworkers.
1MB=1000 kb

≈ 1748,71 seconds
ransform in kilobyte and share knowing transfer time :)
Answer:
maybe blockchain can help them in term of security