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Remote login enables users on one system to log into a remote system and use hardware and software
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                  available at the remote computer.
                  Cloud Computing enables storage and computing services over the Internet. For example, Google Cloud
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                  Platform  (GCP),  Amazon  Web  Services  (AWS),  and  Microsoft  Azure  enable  collaborative  computing
                  environments.

                  Interspace is a client/server software tool that allows users to connect online in dynamic 3D worlds using
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                  real-time audio, video, and text chat.
                  Video Conferencing allows multiple users to exchange video and voice messages in real-time. Examples:
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                  Video calls using applications like Facebook and WhatsApp, or more sophisticated tools like Google Meet,
                  Zoom Meetings, Cisco Webex.
                  The arrangement of nodes in a network is called topology.
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                  A mesh topology is a network design where each device or node is directly connected to every other device
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                  or node in the network.
                  In bus topology, various nodes are connected to a long cable, called backbone cable. The nodes are connected
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                  to the backbone cable via connectors, also called taps.
                  In the ring topology, all devices are attached through a cable in the form of a ring (in circular fashion). Each
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                  device connects to precisely two devices, one on either side.
                  The star topology has a central controller known as a hub. All the nodes are connected to the hub.
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                  The tree topology exhibits a hierarchical structure. The central hub at the root of the tree may be connected
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                  to other nodes or secondary hubs.

                  A Personal Area Network (PAN) is a computer network that links computers and gadgets within a person’s
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                  range. PANs have a short-range, often up to 10 meters (33 feet).
                  A Local Area Network (LAN) is typically owned privately by an organization. It can span an area of about 1 Km.
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                  A Metropolitan Area Network (MAN) can span a radius of up to 50 kilometers. A MAN typically connects
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                  various local area networks within a city.
                  A Wide Area Network (WAN) can span a radius of up to 1000 km. Therefore, a WAN can connect across
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                  countries and continents.
                  RJ45 (RJ denotes Registered Jack, and 45 refers to an interface standard) connector is used to connect the
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                  devices to the network cables.
                  A network interface card is a piece of hardware (also known as a network adapter, network interface controller,
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                  or LAN adapter) that allows a computer to connect to a network.
                  Ethernet cards, also known as Ethernet adaptors, connect networks using cables. They provide high-speed
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                  network connections in the range of 10 Mbps to 10 Gbps.

                  A WIFI card provides wireless connectivity and is used to form wireless LANs.
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                  A repeater intensifies the strength of the incoming signal before transferring it further. As a repeater restores
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                  the strength of a signal, it is also called a regenerator.
                  A hub comprises several ports, each of which connects to a single cable. A hub transmits the data arriving on
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                  any incoming line to all the connected lines.
                  A bridge is a multiport device that connects two or more local area networks (LANs) to form an extensive
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                  network.
                  Switches also connect individual computers. Each computer is connected to a unique port on a switch.
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