Today's computer networks have become an infrastructure as essential as utility networks such as the transportation network and the national grid of electricity. A wide variety of networking technologies are deployed to support nearly every sector of the society. Among these technologies, those that are related to wireless and mobile networking, multimedia networking, as well as network security are among the most popular and important. After learning fundamental concepts and protocols in computer networks from the first networks course, this second computer networks course examines more practical and advanced topics in computer networking. In addition to those mentioned above, we will also study advanced routing algorithms in computer networks and network management. Both are critical tasks for corporations such as network service providers and for individual professionals such as network administrators.