If you've owned a PC for anywhere longer than a few weeks, chances are that you've quickly learned that hindsight is indeed always 20/20.
While implementing a functional network design that meets an organization's business and technical goals is critical, it is imperative that the design is properly secured.
It may often seem like nothing more than a sleek metal box on the outside, but the internal memory components of a Cisco router represent where much of the real magic takes place.
If you're planning on recycling, donating, or even scrapping your old PC, it's important to ensure that you've securely erased all data from your hard drives. Too
Any look at network switching concepts will ultimately lead to a discussion about network bridging, and vice versa.
Any look at network switching concepts will ultimately lead to a discussion about network bridging, and vice versa. At the end of the day, the roles played by a bridge and a switch are more or less identical - they help to break a network up into a number of smaller collision domains. Recall from earlier in the series that a collision domain is simply a group of computers amongst which data collisions can occur. For example, when connecting systems using a hub, all systems are considered to be part of the same collision domain, since the hub will simply forward data out all ports, with no regard for where the actual destination host is located.
This article carries on with our review of basic network concepts, including a look at network media access methods and an introduction to network technologies. The material to be covered in this article includes:
In this article we'll walk through the essentials of network transmissions and network cabling. This includes a look at the various cable types commonly found on LANs and their properties, as well as the methods for properly wiring devices and creating Category 5 cables.
Welcome to article number 4 in my Cisco CCNA in 15 minutes a week series. This week's article begins the move beyond network models and into actual networking concepts. Prior to getting into the details of Cisco devices and their configuration, you'll need a solid fundamental understanding of not only network concepts, but also technologies, protocols, and equipment. This article will be the first of a few that will begin covering some of these critical areas; this particular article provides an overview of basic network equipment.
This article focuses on another important network model, the Cisco hierarchical network design model. Very different that the OSI model, this model is used as the basis for designing Cisco networks for security and performance. The article provides an overview of the roles and responsibilities of each of the model's 3 layers.
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