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You will learn about computer network basics, the devices that exist in a computer network, and how to configure them. Broadcast — Communication from one host to all the hosts in the network.
CCNA Routing and Switching Study Guide – PDF Book
Please approve this email to receive our weekly eBook update. Nheil sheitan les khrey. While broadcasts are useful and essential for network operations, in a large switched network too many introduction to ccna pdf download will slow down the network.
That is just a recipe for many collisions and an inefficient network.
All hosts connected to a switched network are said to be in the same broadcast domain. Remember that switches break collision domains and routers break broadcast domains. Introduction to Networks v5. Also, unlike hubs, switches do not flood every packet out all ports.
Since the data is centralized, any office location can see data pertaining to any location. This is just one part of the equation. Introduction to ccna pdf download you answered more than 5 then you need to remember that a hub does not break collision domains. They also need various data from the head office and other offices around the world.
One end of the network cable connects to the NIC on a host and the other connects to the network. About Computer Networks What is a computer network?
In this case, the cable directly connects to another host.
Imagine the amount of information such as sales, inventory, etc. This is function is discussed in detail later in the book. A simple example of resource sharing is a printer introduvtion a typical office.
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Like hubs, switches are used to connect hosts in a network but switches break up collision ot by providing a single collision domain for every port. Figure shows three hosts connected to a hub. Communication between Networks — As shown in Figurerouters allow communication between networks connected to it. They also help in vcna optimization by helping to share resources. Students who complete Introduction to Networks will be able to perform the following functions: At this stage it is important to introduction to ccna pdf download how hosts connect to a network.
CCNA Routing and Switching Study Guide
Communication between hosts can be classified into three types:. Thank you in advance. Figure and show two networks.
To get this information they will need to call their local offices. However with a network, the printer can be shared between many different computers. Without networks, each computer would require a dedicated printer.