Do you think most people believe that their e-mail is private? who is reading your e-mail? is your e-mail safe? pls give your reaction.

What is domain name system (dns)? allows dynamic ip address allocation so users do not have to have a preconfigured ip address to use the network converts ip addresses into domains, or identifying labels that use a variety of recognizable naming conventions the efficient coexistence of telephone, video, and data communication within a single network, offering convenience and flexibility not possible with separate infrastructures the integration of communication channels into a single service

What are "open-loop" and "closed-loop" systems

How do you share someone else’s tweet with your own twitter followers?