Introduction to Computer Networks Quiz

Data Communications

• Data communications is the process of transferring data from one place to another using computing and communication technologies.
• It involves the exchange of data between devices, systems, or networks.

Computer Network

• A computer network is a group of two or more computers connected to communicate data electronically.
• It enables data communication, resource sharing, and collaboration between devices.

Internet

• The internet is a global network of interconnected computers, networks, and devices.
• It uses guided, wireless, and fiber-optic technologies to connect private, public, business, academic, and government networks.

Evolution of the Internet

• The idea of ARPANET was proposed in 1961 by Leonard Kleinrock.
• The term "packet" was coined in 1965 by Donald Davies to describe data sent between computers over a network.
• ARPANET was the first computer network to use packet switching in 1969.
• The first email was sent in 1971 by Ray Tomlinson.
• Ethernet was developed in 1973 by Robert Metcalfe.
• The Internet Protocol (IP) was invented in 1978 by Bob Kahn and Vint Cerf.
• IPv4 was officially defined in 1981, and IPv6 was introduced in 1996.

Internetworking

• Internetworking is the process of connecting different networks using intermediary devices such as routers or gateways.
• It enables data communication among networks owned and operated by different entities using a common protocol.

Features of the Internet

• The internet uses TCP/IP protocol suite and IP as its addressing protocol.
• It is widely deployed on World Wide Web services using HTML linked pages and accessible by client software known as Web Browsers.
• It uses very high-speed backbone of fiber optics, including submarine communication cables.

Innovations in Computer Networking

• Cloud Computing is the practice of using a network of remote servers hosted on the Internet to store, manage, and process data.
• Internet of Things (IoT) has evolved from the convergence of wireless technologies, microelectromechanical systems (MEMS), micro-services, and the internet.
• Li-Fi Technology is a mobile wireless technology that uses light rather than radio frequencies to transmit data.