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CompTIA A+ Certification Regional Domain Model

By Zhuimeng Subscribe to RSS | January 27th 2012 | Views:

In most international and large-scale companies, users are often divided into several geo- graphic locations, such as Tokyo, Madrid, Hong Kong, and Los Angeles. Historically, the only way to connect these locations has been via a wide area network (WAN) connection over a relatively slow bandwidth link.

In a regional design, each of these regions is assigned their own speci?c domain where they can be further MCTS Windows Server 2008 subdivided into more closely knit administrative groups. Figure 1.7 shows an example of this type of domain structure.

Sometimes when you need to isolate particular services using an autonomous model (not an isolation model!), it becomes necessary for you to create a multiple tree infrastructure wherein services or data are allocated among separate domain trees in a fashion that allows for a broader form of administration. You can see this model in action in Figure 1.8.

The main advantage of this model is that you manage to achieve a form of autonomous separation, but you also get to maintain the simplicity of a single schema. And if tHere’s one aspect of Windows Server that?s annoying to mess with, it’s the schema.

Of course, this structure has drawbacks. Specifically, if you decide to use this form of administration, you remove the option to have complete isolation. Because the domain trees all are in the same forest, the root-level domain will have access to the rest of the trees and therefore will be able alter important information?something that you, as an enterprise administrator, may not want to have happen. Additionally, authentication paths usually take longer in this model because users have to cross separate servers to authenticate across links that are farther away.

Now that you’ve seen the elements required to create an MCITP Enterprise Administrator effective domain infrastructure, I’ll discuss how to put them together effectively.

The process for this, once you understand the elements involved, is rather simple. Here are the steps for domain structure creation:

1. Determine the administrative model.

_N Centralized

_N Decentralized

_N Hybrid

2. Choose a domain model.

3. Choose the number of domains.

4. Assign your domain functional levels.

5. Assign a root domain.

One of the most important tasks when creating your overall design (if you ask your secu-rity administrator, the most important task) is to make sure the right people have access to the right information at the right time. In the administrative world, we call these processes authentication and authorization.

Zhuimeng - About Author:
This CompTIA A+ Certification is necessary to an IT skilled because it largely offers with network safety matters that for a long time have been a serious trouble in many organizations that have information networks.

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