{"id":25505200,"date":"2022-01-21T19:07:38","date_gmt":"2022-01-21T13:37:38","guid":{"rendered":"https:\/\/entri.app\/blog\/?p=25505200"},"modified":"2022-01-21T19:07:38","modified_gmt":"2022-01-21T13:37:38","slug":"computer-network-notes","status":"publish","type":"post","link":"https:\/\/entri.app\/blog\/computer-network-notes\/","title":{"rendered":"Computer Network Notes PDF &#8211; Basics, Types"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_79_2 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-69e76514d9002\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-69e76514d9002\"  aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-1'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/entri.app\/blog\/computer-network-notes\/#Computer_Network_Introduction\" >Computer Network\u00a0Introduction<\/a><ul class='ez-toc-list-level-2' ><li class='ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/entri.app\/blog\/computer-network-notes\/#Uses_of_the_computer_Network\" >Uses of the computer Network<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/entri.app\/blog\/computer-network-notes\/#Advantages_of_Computer_Network\" >Advantages of Computer Network<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/entri.app\/blog\/computer-network-notes\/#Modes_of_communication\" >Modes of communication<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/entri.app\/blog\/computer-network-notes\/#Different_Types_of_Computer_Network\" >Different Types of Computer Network:<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/entri.app\/blog\/computer-network-notes\/#Physical_Topology_and_Logical_Topology\" >Physical Topology and Logical Topology:<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<p>Computer Network is one of the most important topics for the preparation of competitive exams. In this article, we will be providing the aspirants with computer network notes along with the PDF download.<\/p>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/entri.sng.link\/Bcofz\/od54\/6blp\" target=\"_blank\" rel=\"noopener\">Prepare for various Government exams! Download Entri App!<\/a><\/strong><\/p>\n<h1><span class=\"ez-toc-section\" id=\"Computer_Network_Introduction\"><\/span><strong>Computer Network\u00a0Introduction<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h1>\n<p>A computer network is a communication system for \u00a0linking computers\/hosts.<\/p>\n<ul>\n<li>A computer network is a number of computers or nodes inter connected by some communication lines.<\/li>\n<li>Two computers connected to the network can exchange information with each other through the other nodes if they are not directly connected.<\/li>\n<li>Some of the nodes in the network may not be computers but \u00a0network devices like switches, routers etc. to help with the communication.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Uses_of_the_computer_Network\"><\/span><strong><b>Uses of the computer Network <\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Exchange of data and information between different nodes or computers.<\/li>\n<li>Interconnect small computers can be used instead of large computers.<\/li>\n<li>Some technologies and applications are examples of Distributed system. (Railway reservation system, Distributed databases etc).<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Advantages_of_Computer_Network\"><\/span><strong>Advantages of Computer Network<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>Better communication<\/li>\n<li>Better connectivity<\/li>\n<li>Better sharing of Resources<\/li>\n<li>Bring people together<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Modes_of_communication\"><\/span><strong><b>Modes of communication<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>In an IPv4 network, the hosts can communicate one of the following three ways:<\/p>\n<ul>\n<li><b><\/b><strong><b>Unicast<\/b><\/strong>&#8211; the process in which a packet is sent from one host to an individual host.<\/li>\n<li><b><\/b><strong><b>Broadcast<\/b><\/strong>&#8211; the process in which a packet is sent from one host to all hosts in the network.<\/li>\n<li><b><\/b><strong><b>Multicast<\/b><\/strong>&#8211; the process in which a packet is sent from one host to a selected group of hosts.<\/li>\n<\/ul>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/entri.sng.link\/Bcofz\/od54\/6blp\" target=\"_blank\" rel=\"noopener\">Prepare for various Government exams! Download Entri App!<\/a><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Different_Types_of_Computer_Network\"><\/span><strong><b>Different <\/b><\/strong><strong><b>Types of Computer Network:<\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><strong><b>\u00a0<\/b><\/strong><strong><b>Local Area Network (LAN) <\/b><\/strong><\/h3>\n<ul>\n<li>The term LAN refers to a regional network or a group of interconnected network that are under the control of the same administration.<\/li>\n<li>LANs consist of the following components:<\/li>\n<li>Computers<\/li>\n<li>Network interface cards<\/li>\n<li>Peripheral devices<\/li>\n<li>Networking media<\/li>\n<li>Network devices<\/li>\n<\/ul>\n<h3><strong><b>MAN<\/b><\/strong><strong><b>\u00a0or Metropolitan Area Network<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><\/h3>\n<ul>\n<li>MAN is a network that includes a town.<\/li>\n<li>The network consists of various buildings interconnected via \u00a0fiber optics backbones or are wireless.<\/li>\n<li>A MAN is a large computer network that usually covers a city or a large campus.<\/li>\n<li>A MAN usually interconnects a number of LANs with technology, such as fiber optical links, and provides up link services to WAN and the Internet.<\/li>\n<\/ul>\n<h3><strong><b>WA<\/b><\/strong><strong><b>N or Wide Area Network<\/b><\/strong><strong><b>\u00a0<\/b><\/strong><\/h3>\n<ul>\n<li>A network that covers larger geographical area than a local area network over public communication network.<\/li>\n<li>WANs are created to do the following: \ue008<\/li>\n<li>Operates over a bigger and geographically separated area<\/li>\n<li>Provides users to have real-time communication capabilities with other\ue008<\/li>\n<li>Provide \u00a0remote resources all the time connected to local services \ue008<\/li>\n<li>Provide file transfer,e-mail, Internet, \u00a0and e-commerce services<\/li>\n<\/ul>\n<p><strong>LAN Vs WAN<\/strong><\/p>\n<table>\n<tbody>\n<tr>\n<td width=\"284\">LAN<\/td>\n<td width=\"284\">WAN<\/td>\n<\/tr>\n<tr>\n<td width=\"284\">Connects host within\u00a0a\u00a0small geographical area.<\/p>\n<p>\u2022 Same Building<\/p>\n<p>\u2022 Same room<\/p>\n<p>\u2022 Same Campus<\/td>\n<td width=\"284\">Hosts may be widely dispersed.<\/p>\n<p>\u2022 Across Campuses<\/p>\n<p>\u2022Acorss Cities\/countries\/continent<\/td>\n<\/tr>\n<tr>\n<td width=\"284\">Faster<\/td>\n<td width=\"284\">Slower<\/td>\n<\/tr>\n<tr>\n<td width=\"284\">Cheaper<\/td>\n<td width=\"284\">Expensive<\/td>\n<\/tr>\n<tr>\n<td width=\"284\">Under a control of single ownership.<\/td>\n<td width=\"284\">Not under a control of a single individual.<\/td>\n<\/tr>\n<tr>\n<td width=\"284\">Typical Speed:From\u00a010 Mbps to 10Gbps<\/td>\n<td width=\"284\">Typical Speed:From\u00a064 Kbps to 8 Mbps<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/entri.sng.link\/Bcofz\/od54\/6blp\" target=\"_blank\" rel=\"noopener\">Prepare for various Government exams! Download Entri App!<\/a><\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Physical_Topology_and_Logical_Topology\"><\/span><strong><b>Physical Topology and Logical Topology: <\/b><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><strong><b>Physical topology<\/b><\/strong><\/h3>\n<ul>\n<li>This topology refers to the way in which a network is laid out materially.<\/li>\n<li>The actual arrangement of the wire or media.<\/li>\n<li>Two or more devices connect through a link; two or more links form a topology.<\/li>\n<\/ul>\n<h3><strong><b>Logical topology<\/b><\/strong><\/h3>\n<ul>\n<li>Shows how the hosts access the media to send data.<\/li>\n<li>Provides the flow of data on a network.<\/li>\n<\/ul>\n<h4><strong><b>Types of Physical Topology<\/b><\/strong><\/h4>\n<p><strong><b>Bus Topology:<\/b><\/strong><\/p>\n<ul>\n<li>A topology that connects \u00a0components along a single cable or that uses a series of cable segments that are connected linearly is known as a bus topology.<\/li>\n<li>A network that uses a this topology is referred to as a \u201cbus network.\u201d<\/li>\n<\/ul>\n<p><strong><b>Ring Topology <\/b><\/strong><\/p>\n<ul>\n<li>In this topology, each device has a dedicated point-to-point connection with only the two devices on both sides of it.<\/li>\n<li>A signal is passed along the ring in a single direction, from node to node, until it reaches its destination.<\/li>\n<li>Each device in the ring works as a repeater.<\/li>\n<\/ul>\n<p><strong><b>Mesh Topology<\/b><\/strong><\/p>\n<ul>\n<li>In a mesh topology, every component has a dedicated point-to-point link to every other component.<\/li>\n<li>The link carries signals only between the two nodes it connects.<\/li>\n<\/ul>\n<p><strong><b>Star Topology<\/b><\/strong><\/p>\n<ul>\n<li>In a star topology, each component has a dedicated point-to-point link only to a central controller called the<\/li>\n<li>The devices are not directly linked to one another like a mesh topology.<\/li>\n<li>Star topology does not allow direct communication between nodes.<\/li>\n<\/ul>\n<h4><strong><b>Logical Topology<\/b><\/strong><\/h4>\n<ul>\n<li>The logical topology of a network decides how the hosts communicate across the medium.<\/li>\n<li>The two most important types of logical topologies are <strong><b>broadcast<\/b><\/strong>\u00a0and <strong><b>token passing<\/b><\/strong>.<\/li>\n<\/ul>\n<p><strong><b>Broadcast<\/b><\/strong><\/p>\n<ul>\n<li>In a broadcast topology each host sends its data to all other hosts on the network medium. No order needs to be followed by the nodes to use the network.<\/li>\n<li>It is first come, first serve.<\/li>\n<\/ul>\n<p><strong><b>Token passing<\/b><\/strong><\/p>\n<ul>\n<li>In this type of topology, an electronic token is passed consecutively to each host.<\/li>\n<li>When a host gets the token, that host can send data on the network.<\/li>\n<li>If the host has no data to send, it passes the token to the next host and the process repeats itself.<\/li>\n<\/ul>\n<p><strong>Click on the link for complete notes on Computer Network<\/strong>: <strong><a href=\"https:\/\/entri.app\/blog\/wp-content\/uploads\/2022\/01\/Computer-Network-PDF-Download.pdf\" target=\"_blank\" rel=\"noopener\">Computer Network PDF Download<\/a><\/strong>.<\/p>\n<p style=\"text-align: center\"><strong><a href=\"https:\/\/entri.sng.link\/Bcofz\/od54\/6blp\" target=\"_blank\" rel=\"noopener\">Prepare for various Government exams! Download Entri App!<\/a><\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Computer Network is one of the most important topics for the preparation of competitive exams. In this article, we will be providing the aspirants with computer network notes along with the PDF download. Prepare for various Government exams! Download Entri App! Computer Network\u00a0Introduction A computer network is a communication system for \u00a0linking computers\/hosts. A computer [&hellip;]<\/p>\n","protected":false},"author":42,"featured_media":25505209,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[802,1864],"tags":[],"class_list":["post-25505200","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-articles","category-data-science-ml"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Computer Network Notes PDF - Basics, Types - Entri Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/entri.app\/blog\/computer-network-notes\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Computer Network Notes PDF - Basics, Types - Entri Blog\" \/>\n<meta property=\"og:description\" content=\"Computer Network is one of the most important topics for the preparation of competitive exams. 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