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The process of upgrading and migrating is like most things involving the Windows world. It is complicated in explanation but relatively simple in practice. When you’re thinking about migrating, remember that there are no direct upgrade paths between any version of Windows without Active Directory and Windows Server 2008. Furthermore, you need to remember the steps involved with upgrading a machine from MCSE Exam to Windows Server 2008. But most important, you need to be familiar with using the Active Directory Migration Tool. The best way to do that is to follow the exercises in this book and to play with the ADMT on your own. Setting up a home lab is a very good idea. Or, if you Don’t have a home lab, running practical exercises at your office may be advisable. But Don’t make any changes that you can?t undo, and never experiment on a production environment?that could be catastrophic. Beyond migrating, one of the pillars of this exam is understanding trusts in all of their complexity. Unless you’ve built, used, and experimented with trusts heavily, the exam will probably confuse you. A full understanding of trusts is also required for your job when you actually become the person who this exam and technology was designed for: an enterprise administrator. As referenced earlier, it’s rare that you’ll run across a one-domain, or even one-forest, architecture. Currently, infrastructures are complex animals and require a great amount of due care and due diligence. Make sure that before CCNA Exam you attempt these in the real world that you’ve mastered them in your own lab?your employers and fellow employees will thank you. Know trusts like the back of your hand. Trusts play a tremendous factor in the exam. You need to be able to spout off the advantages of different types of trusts and show where they belong in the infrastructure and how they should be implemented. Understand the limits and advantages of migration. Migration can?t solve everything. You need to be familiar with what you can and cannot do with migration, as well as the proce- dure for doing it. Practice migrating several user accounts and groups between your domain controllers before you take the exam. Know where, when, and how to use the Active Directory Migration Tool. This is probably the most important point in this chapter to remember for the exam. Know how to use the ADMT and where you need to be to acquire your source and target domains. You can?t just run the ADMT from anywhere.
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