193) Linda has been reading in the popular press all about RFID and wireless sensor networks. She is in the livestock business and wonders if there might be some applications of this technology in her...

193) Linda has been reading in the popular press all about RFID and wireless sensor networks. She is in the livestock business and wonders if there might be some applications of this technology in her industry. Linda first wants to understand the basics of these technologies. Describe for her why radio frequency identification (RFID) and wireless sensor networks can be valuable for business.

194) Identify the layers of the Department of Defense reference model for TCP/IP, and describe how this model works.

195) You have been hired by a tax preparation firm to set up a network connecting several new branches in a metropolitan area. What type of network hardware and transmission media will you choose and why?

196) You have been hired by a small new Web design firm to set up a network for its single office location. The network is primarily needed for exchanging files, accessing and managing beta Web sites on their Web server, and connecting to the Internet. The firm hires many freelancers who come into the office on an ad hoc basis and it does not have a lot of money to spend on infrastructure. What type of network will you recommend?