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Answer:
Communication path basically define the path in which the information and messages can be exchange by using the efficient communication path.
There are simple formula for calculating the total number of communication channel that is :

Where, n is the number of stack holder.
Now, the maximum number of communication paths for a team of twenty people can be calculated as:
n=20
=\frac{20(20-1)}{2} = 190
Therefore, 190 is the total number of communication path.
Answer:
Virtualization is the process which refers to the isolating the various computing resources that basically run without depend on the particular platform in the environment.
The virtualization basically allow the various application like software and hardware that mainly used to connect different types of server and storage applications.
The virtualization impact while designing the program is that it helps in the program execution process and also reducing the impact by using the hardware virtualization support in the system. The thread system also maintain the virtualization impact while designing.