In this chapter students will be able to: Describe the roles and purposes of data warehouses and data marts in an organization, compare the multidimensional nature of data warehouses (and data marts) with the two-dimensional nature of databases, identify the importance of ensuring the cleanliness of information throughout an organization,. | CHAPTER SEVEN NETWORKS MOBILE BUSINESS CHAPTER OVERVIEW SECTION – Connectivity: The Business Value of a Networked World Overview of a Connected World Benefits of a Connected World Challenges of a Connected World SECTION – Mobility: The Business Value of a Wireless World Wireless Network Categories Business Applications of Wireless Networks Benefits of Business Mobility Challenges of Business Mobility SECTION CONNECTIVITY LEARNING OUTCOMES Explain the five different networking elements creating a connected world. Identify the benefits and challenges of a connected world OVERVIEW OF A CONNECTED WORLD Networking Elements Creating a Connected World Network Categories Local area network (LAN) - Connects a group of computers in close proximity, such as in an office building, school, or home Wide area network (WAN) - Spans a large geographic area such as a state, province, or country Metropolitan area network (MAN) - A large computer network usually spanning a | CHAPTER SEVEN NETWORKS MOBILE BUSINESS CHAPTER OVERVIEW SECTION – Connectivity: The Business Value of a Networked World Overview of a Connected World Benefits of a Connected World Challenges of a Connected World SECTION – Mobility: The Business Value of a Wireless World Wireless Network Categories Business Applications of Wireless Networks Benefits of Business Mobility Challenges of Business Mobility SECTION CONNECTIVITY LEARNING OUTCOMES Explain the five different networking elements creating a connected world. Identify the benefits and challenges of a connected world OVERVIEW OF A CONNECTED WORLD Networking Elements Creating a Connected World Network Categories Local area network (LAN) - Connects a group of computers in close proximity, such as in an office building, school, or home Wide area network (WAN) - Spans a large geographic area such as a state, province, or country Metropolitan area network (MAN) - A large computer network usually spanning a city Network Providers National service providers (NSPs) - Private companies that own and maintain the worldwide backbone that supports the Internet Network access points (NAPs) - Traffic exchange points in the routing hierarchy of the Internet that connects NSPs Regional service providers (RSPs) - Offer Internet service by connecting to NSPs, but they also can connect directly to each other Network Access Technologies Bandwidth - The maximum amount of data that can pass from one point to another in a unit of time Bit Bit rate Modem Network Access Technologies Broadband – A high-speed Internet connection that is always connected Digital subscriber line Internet cable connection High speed Internet cable connections Cable modem Telecommuting Broadband over power line Network Protocols Protocol - A standard that specifies the format of data as well as the rules to be followed during transmission Transmission control protocol/Internet protocol (TCP/IP) - Provides the .
