The ABC Building is ten stories tall with just one elevator shaft serving all levels. Servers on the eighth level are also used by the ninth and tenth floors. Detail the various lift shaft connection types. Make a well-reasoned decision and tick the best box. If speedier connectivity across floors is a priority, you may want to look elsewhere. What is the best media for unlimited data transfer? What do you think?

How does a WAN differ from a LAN and what must be taken into consideration in terms of communications media? Support your rationale.

a. Assuming I have a very important not confidential message to send to a friend, which is means that I do not care whether the massage is seen by others or not, my aim is to get it to my friend with its integrity ensured. Outline the mechanisms and procedures you would go through to deliver this message securely. b. IoT is an emerging technology growing at a very fast rate due the easy connectivity capability of the IoT objects. IoT networks grow exponentially producing data in high volumes, which are transmitted at high speeds, thus, the network is highly exposed to threats and attacks. 1. Identify two attacks in the IoT system and discuss the effects of these attacks on the IoT network.  2. Propose a solution to the problem identified bearing in mind some of these objects are very small and cannot deal with computationally complex mechanisms.

CNT-Books wants an affordable way to establish a remote connection for its salespeople, who log on from customer sites all over the country, and its three branch offices. The company's main office is in Phoenix, AZ, and its branch offices are in Los Angeles CA, Chicago IL, and Orlando FL. What kind of services should be installed on the main offices network to keep communication costs to a minimum?