{"id":28432,"date":"2019-05-06T13:18:55","date_gmt":"2019-05-06T13:18:55","guid":{"rendered":"https:\/\/www.softwaretestinghelp.com\/?page_id=28432"},"modified":"2025-04-01T08:03:54","modified_gmt":"2025-04-01T08:03:54","slug":"computer-networking-basics","status":"publish","type":"page","link":"https:\/\/www.softwaretestinghelp.com\/computer-networking-basics\/","title":{"rendered":"Computer Networking Tutorial: The Ultimate Guide"},"content":{"rendered":"

Computer Networking: The Ultimate Guide to Computer Network Basics and Networking Concepts
\n<\/strong><\/p>\n

Computers and the Internet have changed this world and our lifestyle very significantly over the last few decades.<\/p>\n

A few decades ago, when we wanted to do a long distance trunk call to someone, then we had to go through a series of tedious procedures to make it happen.<\/p>\n

Meanwhile, it would be very costly both in terms of time as well as money. However, things have changed over a period of time as advanced technologies have been introduced now. Today we just need to touch a small button and within a fraction of a second, we can make a call, send a text or video message, very easily with the help of smartphones, internet & computers.<\/p>\n

<\/strong><\/em><\/p>\n

The major factor that lies behind this advanced technology is none other than Computer Networks. It is a set of nodes connected by a media link. A node can be any device such as a modem, printer or computer which should have the ability to send or receive data generated by the other nodes over the network.<\/p>\n

\"COMPUTER<\/a><\/p>\n

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List of Tutorials in Computer Networking Series:<\/strong><\/span><\/p>\n

Enlisted below is the list of all Network tutorials in this series for your reference.<\/p>\n\n

\n\n\n\n\t\n\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t\n\t
Tutorial_Num<\/th>Link<\/th>\n<\/tr>\n<\/thead>\n
Tutorial #1<\/strong><\/td>Computer Networking Basics<\/a>\u00a0(This Tutorial)<\/strong><\/td>\n<\/tr>\n
Tutorial #2<\/strong><\/td>7 Layers of The OSI Model<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #3<\/strong><\/td>LAN Vs WAN Vs MAN<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #4<\/strong><\/td>Subnet Mask (Subnetting) and Network Classes<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #5<\/strong><\/td>Layer 2 and Layer 3 Switches<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #6<\/strong><\/td>All About Routers<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #7<\/strong><\/td>A Complete Guide to Firewall<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #8<\/strong><\/td>TCP\/IP Model With Different Layers<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #9<\/strong><\/td>Wide Area Network (WAN) with Examples<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #10<\/strong><\/td>Difference Between IPv4 and IPv6 Addressing<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #11<\/strong><\/td>Application Layer Protocols: DNS, FTP, SMTP<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #12<\/strong><\/td>HTTP and DHCP Protocols<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #13<\/strong><\/td>IP Security, TACACS and AAA Security Protocols<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #14<\/strong><\/td>IEEE 802.11 and 802.11i Wireless LAN Standards<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #15<\/strong><\/td>Network Security Guide<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #16<\/strong><\/td>Network Troubleshooting Steps and Tools<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #17<\/strong><\/td>Virtualization with Examples<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #18<\/strong><\/td>Network Security Key<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #19<\/strong><\/td>Network Vulnerability Assessment<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #20<\/strong><\/td>Modem Vs Router<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #21<\/strong><\/td>Network Address Translation (NAT)<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #22<\/strong><\/td>7 Ways to Fix \u201cDefault Gateway Is Not Available\u201d Error<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #23<\/strong><\/td>Default Router IP Address List For Common Wireless Router Brands<\/strong><\/a><\/td>\n<\/tr>\n
Tutorial #24<\/strong><\/td>Default Router Login Password For Top Router Models\u00a0<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #25<\/strong><\/td>TCP vs UDP<\/a><\/strong><\/td>\n<\/tr>\n
Tutorial #26<\/strong><\/td>IPTV <\/a><\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n\n
\n

Let’s start with the first tutorial in this series.<\/strong><\/span><\/p>\n

Introduction to Computer Networking<\/h2>\n

Computer Network is basically a digital telecommunications network which permits the nodes to allocate resources.\u00a0A computer network should be a set of two or more than two computers, printers & nodes that will transmit or receive data through wired media like copper cable or optic cable or wireless media like WiFi.<\/p>\n

The best Example<\/span> of a computer network is the Internet.<\/strong><\/p>\n

A computer network doesn\u2019t mean a system which has a single control unit connected with the other systems which behave as its slaves.<\/p>\n

Moreover, it should be able to meet certain criteria as mentioned below:<\/strong><\/p>\n