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Table Of Contents  CertiGuide to Network+
 9  Chapter 0010:  ISO, OSI, and IEEE Standards

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802.1 Internetwork Definition
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III  IEEE 802.x Standards

Before the concept of a group of networked computers was a common business thought, the Department of Defense (DOD) had this challenge to overcome. The original model used TCP/IP (only) and was based on a four (4)-layer model. They are called the Network, Internet, Host-to-Host and Application layers.

[spacer]DOD

The NETWORK+ test has no DOD model based questions.


As we noted when discussing Layer 2 of the OSI model, the IEEE 802 sub-committee took over a segment of the work from the OSI group. These two groups communicated with each other to create a working understanding of who will do what.

As you saw earlier, this is a dynamic function. The latest techno-speak to come out of these groups is to rename the IEEE 802 grouping to ISO/IEC 8802-1 through ISO/IEC 8802.11. The IEC (International Electrotechnical Commission) creates electrical standards with representatives from more than 30 countries.

Standards

IEC 8802.1 - 8802.11 had not entered general use when the current NETWORK+ test was written. Therefore expect the NETWORK+ test to reflect the majority of printed documentation using the older IEEE 802 reference model. It is brought up here solely to alert you to new the new terminology. This courseware references the older IEEE method, which is still the most common terminology in use.


We shall now cover the standards and uses by number. We will use the older naming convention both because it is used on the NETWORK+ test, and because it is still the most commonly used convention for those standards in the real world.

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