As computer systems become smaller, cheaper, and more readily accessible, it seems everyone is connected at the touch of a button. Organizations struggle to remain efficient as they manage growing numbers of single-user computer systems. These systems require interconnectivity to exchange data, share resources, and access more powerful computers for tasks too complicated for local computers to process. All of these activities require computing devices to access multiple networks. This course introduces networks such as the local area network (LAN), the enterprise network, the campus area network (CAN), the metropolitan area network (MAN), metro Ethernet, the personal area network (PAN), the virtual private network (VPN), and the wide area network (WAN). The course discusses the essentials for implementing modern computer networks. Each lesson goes through the various networking technologies. The course introduces the concepts and practices associated with network security vulnerabilities, threats, risk mitigation, and the policies and procedures associated with security management.
An excellent online course offered by edX: how it works
edX courses consist of weekly learning sequences. Each learning sequence is composed of short videos interspersed with interactive learning exercises, where students can immediately practise the concepts from the videos. The courses often include tutorial videos that are similar to small on-campus discussion groups, an online textbook, and an online discussion forum where students can post and review questions and comments to each other and teaching assistants. Where applicable, online laboratories are incorporated into the course.
edX offers certificates of successful completion and some courses are credit-eligible. Whether or not a college or university offers credit for an online course is within the sole discretion of the school. edX offers a variety of ways to take courses, including verified courses where students have the option to audit the course (no cost) or to work toward an edX Verified Certificate (fees vary by course). edX also offers XSeries Certificates for completion of a bundled set of two to seven verified courses in a single subject (cost varies depending on the courses).
An edX learning programme under Other Experiences