1. Why the business organization choose computer network for its employee computers? List down the different topologies which are used for computer networks. Is MAC address responsible for communication among computers within same LAN.
2. If a computer manufacturer called Apex created a home page for the Web, what would its URL likely be? Also, provide appropriate e-mail address for yourself, assuming that you are employed by that company.
3. What factors made Pakistan Telecommunication Company Limited (PTCL) to convert its network from circuit switching to packet switching?

The ubiquitous nature of mobile phones today brings tremendous convenience to our lives, but misuse of new improvements to this technology result in the loss of that convenience and other problems? Justify this statement