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Computer Networking Basics and Certification

Create a Peer-to-peer Network
Many small to medium sized organizations are wrestling with Windows server and paying excessive licensing fees when they don't need to. Sure, a server provides centralized security administration, but is it really more efficient? More ...

Packet Switching Store-and-Forward Transmission
To send a message from a source end system to a destination end system, the source breaks long messages into smaller chunks of data known as packets. Most packet switches use store-and-forward transmission at the inputs to the links. Store-and-forward transmission means that the packet switch must receive the entire packet before it can begin to transmit the first bit of the packet onto the outbound link. More ...

Fiber Optic Cabling For Beginners
Traditionally, twisted pair copper cable has been the most common form of network cabling. As technology continues to advance however, fiber optic cable is quickly becoming the standard in network cabling. More ...

Network+ Certification Exam Tutorial - How And When To Use Virtual LANs (VLANs)
From your Network+ exam studies, you know that switches forward broadcasts, and that sounds great, but that's not always a good thing. A switch can have anywhere from 12 ports to 80 or more, and by default all hosts connected to that switch are going to be in the same broadcast domain. More ...

Fiber Broadband Internet Service
Fiber broadband is the optical fiber, which replaces all or part of the usual metal local loops used for the final leg of delivering connectivity in telecommunications. With optical fiber technology it is likely that speeds that are considered to be broadband could change in coming times. More ...

What is Port Forwarding?
Port forwarding redirects a communication request from one address and port number connection to another while the packets are traversing a network gateway. This technique is used to hide hosts residing on an internal network from hosts on external networks. More ...

Cloud Service Models
Before an organization migrates any piece of their business to the cloud, they need to understand who is in control of those resources. There are a variety of cloud service models that offer the cloud consumer a number of different options. More ...

What is DNS?
Have you ever wondered what happens when you enter, or click on, a web address in your browser? How does your computer connect to the Web site you requested? Part of what makes that happen is the Internet's Domain Name Service (DNS). More ...

What is Cloud Computing?
You can't be sure where a specific Internet device is, it's just out there in the cloud of devices that is the Internet. An individual connected to the Internet can use an application that's in the cloud. An organization can place their data in the cloud. More ...

Network+ Certification Exam Tutorial - DHCP And RARP
Part of passing the Network+ exam is mastering the many different protocols and services you're introduced to in your studies, and that's especially hard when two protocols do much the same thing! That's the case with RARP and DHCP, so let's take a close look at these two protocols and why we use them in the first place. More ...

Degree verses Computer Certifications
MCSE, CCNA or CCNP, Linux, Netware and Unix, these are all good certifications to have, but in today's job market, certifications are the basic minimum required by employers. Most positions require a degree. More ...

Cloud Delivery Models
In order to realize the value from a cloud service the customers must have access to them. A cloud delivery model must be chosen. Implementing a cloud delivery model can vastly impact an organization. More ...

A Complete Explanation of Cloud Computing
This article provides a complete explanation of cloud computing; virtualisation, cloud computing models, cloud deployment models, cloud delivery models, cloud metering and billing, and the future of cloud computing. More ...


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