An Introduction to Computer Networks 1 An Overview of Networks. 13 of selected important network applications, or the basics of network. This tutorial is prepared for the beginners to help them understand Data. Communication and Computer Networks. Prerequisites. Before proceeding with this. Computer Networking: Principles, Protocols, and Practice was written by Dr. Olivier Bonaventure of the. Université to this basic service have been proposed.
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In many networks, the basic unit of information exchanged between two in wm-greece.info In working, the computer network will more likely be successful in the company. Lauren has decided to review basic network concepts with her coworkers as. This book is meant as a serious and more-or-less thorough text for an introductory college or graduate course in computer networks, carefully.
Some of these free networking books download in a format that requires a special program or app to read it. If you need to convert one of these books to a new document format that works with a specific computer program or mobile app, use a free document file converter.
There are 24 chapters in this book that are separated into three parts: Author Eugene Blanchard completed this book based on his experience with the Linux operating system. The topics covered in this book are generally applicable across environments: OSI model, area networks, modems, and wired and wireless connections.
This page book broken up into 63 chapters should satisfy the basic needs of anyone looking to get familiar with a wide range of network technologies. The entire book is viewable online in separate web pages, so you don't need to bother with downloading it to your computer or phone.
This page book written by Dr.
This free networking book is available online as a read-only PDF document. You can download the book to your computer, phone, etc. Every device attached to your home network has an IP address, but what is a IP address?
The IP address is the most important address as far as we are concerned, as it is a logical address, meaning it is assigned by us, and can be changed.
Current networks use IPv4 Addresses. The IP IPv4 address is a 32 bit address and is written in dotted decimal notation and appears like this:. When troubleshooting network problems you will need to be able to identify network addresses, and if a device has one, and whether that address is valid.
If a client cannot get an IP address then some clients will auto assign an IP address. In either case it is unlikely to work correctly because clients with a To find the IP address on a windows computer using ipconfig, open a command line dos prompt and type the command ipconfig at the prompt. You may have more than one network address if you have multiple network cards installed.
The IP address here is You will also see the default gateway address This is the IP address of the Router, the term gateway is an old Unix expression that is still used.
To send an IP packet to a network device the sender needs to know the IP address of the destination device.
In order to deliver the packet to the final destination the MAC address of the destination computer must be known. A protocol know as ARP address resolution protocol is used, which uses an Ethernet broadcast to query the nodes on the network. The query is basically:. Send me your MAC address. So when you look at an IP address what you see is a number with two components. A network component and a node component.
It is the job of the Subnet mask to split the IP address into the network component and the Node component device address. This gives a network number of For those new to networking IPv4 is where you should start, and once you become familiar with it then you might consider taking a look at IPv6.
Let me know using the comments section below and help me improve this course. Thanks Steve. Nicely presented. Regards Ian. Ian Tks for taking the time for writing the comment I will incorporate you points in the artilce update.
Everything else i have ever read on the osi model classifies hubs as physical layer. Hi Steve, I just discovered your website today. I think it is great!
It is to point and you cover all the most used and needed components. You have very clear and consise explanations. Keep up the good work, and thanks again. Q 4 I disagree. DNS is important, but not necessay if never use the internet. If your home network has no DNS server configured you cannot acces the internet.
Q 6 I disagree. Q 8 You got me on this one. I thought you were asking about the IP address.
Q8 regarding ethernet is a bit of a trick question to check that you understand that Ethernet addresses are pre-assigned. For the test: Q4 is misleading — if you want to access the internet you have to have a DNS configured or there will be no way of browsing the internet.
Do you mean if you have to have your own DNS in the home network? For me the question is unclear. Yes, broadcast domains and collisions. You have a diagram but no good explanation of what it means. The best simple explanation I have seen! Thank you. Your email address will not be published. Skip to content Computer networks consist of many different components, technologies and protocols working together.
Getting Started In order for two computers to talk to each other they need: To be Connected cable or Wireless this is known as the connection media.