Data Encapsulation in the OSI Model

Before you start Objectives: learn how data travels between OSI layers, how is data transformed and how do we refer to data at different layers. Prerequisites: you should know function of each layer of the OSI model. Key terms: data, layer, network, segment, bits, osi, port, session, source, destination, address, frame, model, packet, transport Data Flow and Encapsulation … Read moreData Encapsulation in the OSI Model

OSI Model Layers and their Functions

Before you start Objectives: learn the names of layers and layer tasks. Learn which protocol exist in which layer. Prerequisites: you should be familiar with general OSI model concepts. Key terms: osi model layers, application layer, presentation layer, session layer, transport layer, tcp, udp, ports, network layer, data link layer, physical layer OSI Model Layers OSI model … Read moreOSI Model Layers and their Functions

Introduction to the OSI Model

Before you start Objectives: learn what OSI model is, which layers does it contain and what are the advantages of using OSI model. Prerequisites: no prerequisites. Key terms: OSI layers, communication, modularity, features, advantages OSI Model The Open Systems Interconnection (OSI) model is a theoretical way of classifying and talking about the complex process of sending data on … Read moreIntroduction to the OSI Model

Ways To Connect Devices To The Network

Before you start Objectives: learn the names of common network architectures which we can use to connect our computers to the network. Prerequisites: no prerequisites. Key terms: wired, ethernet, isdn, dsl, dial-up, connection, cable, wireless Wired Connection Ethernet Ethernet network technology is used for Local Area Networks (LANs). Ethernet connections are used by organizations and now it is … Read moreWays To Connect Devices To The Network

Terms Used in Networking

Before you start Objectives: learn the difference between network, subnet, internetwork, Internet, intranet, and extranet. Prerequisites: you should know what do we need to create basic computer network. Key terms: postal service analogy, cables, connectors, ip address, network, subnet, local area network, wide area network, internet, intranet, extranet Postal Service Analogy Cables and Connectors Imagine … Read moreTerms Used in Networking

Overview of Network Types and Topologies

Before you start Objectives: learn about different types of networks and on what basis it can be classified. Prerequisites: no prerequisites. Key terms: network classification, host roles, peer-to-peer, client-server, geographic proximity, local area network, wide area network, metropolitan area network, personal area network, network topologies, bus topology, ring topology, star topology, mesh topology, physical topology, … Read moreOverview of Network Types and Topologies

Introduction to Computer Networks

Before you start Objectives: learn what is computer network, why do we use it and what do we need to create basic network. Prerequisites: no prerequisites. Key terms: network, connections, systems, media, communication, sharing, interface, usage, protocol, collaboration. Systems The first thing we need to have are the systems which we want to interconnect and have them communicate. … Read moreIntroduction to Computer Networks

IP version 4 Address

Before you start Objectives: learn what is IP address, how it is constructed, how to convert it between its decimal and binary form, which IP address classes are there, and what is Subnetting. Prerequisites: no prerequisites Key terms: address, ip, subnet, network, class, decimal, binary, mask, host, octet, number, value, broadcast, class Addressing Each computer … Read moreIP version 4 Address