This edition helps readers better understand today's networks and the way they support the evolving requirements of different types of organizations. It discusses the critical issues of designing a network that will meet an organization's performance needs and discusses how businesses use networks to solve business problems. Using numerous examples and exercises, this text incorporates hands-on activities to prepare readers to fully understand and design modern networks and their requirements. Key features of the second edition: introduction to network basics by describing how networks work; discussion of how networks support the increasing demands of advanced communications; illustration of how to map the right technology to an organization's needs and business goals; outlines how businesses use networks to solve business problems, both technically and operationally. -- Edited summary from book.