Category: networks

What is port forwarding?

More self-tutoring about computer networks: the tutor examines the idea of port forwarding. From a practical point of view, port forwarding is a way to set up a router so that outside inquiries can reach a resource behind it, in

What is a port in computer networking?

Self-tutoring about computer networks: the tutor offers a definition of the common networking term port. A port can be physical or logical. A physical port is a plug-in socket at which to attach a device to the computer, such as

Computer networks: what is a switch?

More technology self-tutoring: the tutor explains his understanding of switch, a term he’s found tricky to define. For background, my post from April 2, as well as my post from yesterday, connect with today’s topic. Switches can be used in

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Computer science, networks: what is a hub?

More technology self-tutoring: the tutor investigates the term hub in networking. hub (in computer network): a central device to which computers can be connected to form a local network. Data the hub receives from one computer will be forwarded to

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Computer science, networks: what is a Peer-to-peer (P2P) network?

More self-tutoring about computer networks: the tutor shares the definition of peer-to-peer network. Peer-to-Peer (P2P) network: A network in which any computer is directly connected to any other, rather than through a server. The premise of P2P seems to be

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Networking, OSI model: Layer 2 vs Layer 3

Reading about networks leads to self-tutoring: the tutor mentions some ideas about Layer 2 vs Layer 3 in computer networks. As I understand, Layer 2, aka the link layer, is associated with data transmission in the context of frames. A

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Computer science: networking: what is a virtual connection?

In tutoring, definitions are always important. The tutor shares the definition of virtual connection. virtual connection: A virtual connection is a software-initiated connection between two nodes in a network. (See yesterday’s post for the definition of a node.) When you

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Computer science, networks: what is a node?

Understanding computer networking leads to self-tutoring: the tutor defines node in computer networks. node (noun): an endpoint, or else a directing or processing device between endpoints. The endpoint could be a PC, printer, scanner, server, etc: at an endpoint, content

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