Communication between two or more entities; two-way communication

The primary disadvantage is that two way communication is slower and takes more time than one way communication. Two way communication can also be a poor choice when there is no room for disagreement, and something simply needs to be done.

Yes, vertical communication is a two way communication. This form of communication is commonly used for people who are in the same position or organizations that use participative style of management.

One -way communication involves a message which does not call for or require a response.

Two-way communication is when the receiver gives a response to the message and there is a discussion about it.

I hope that this can help you.

Two way communication is both transmission and reception.In simple terms its like two people communicating with each other.