Exam Objectives in this Chapter: Plan a strategy for placing global catalog servers. Identify network traffic considerations when placing global catalog servers.Identify the need to enable universal group membership caching.Create and configure application directory partitions. Implement an Active Directory site topology.Configure site links. Configure preferred bridgehead servers.Manage an Active Directory site.Configure replication schedules.Configure site link costs. Configure sites. Monitor Active Directory replication failures.Monitor Active Directory replication.Troubleshoot Active Directory directory service.Diagnose and resolve issues related to Active Directory replication. Permissions control what users can do with a resource, such as a folder, file, or printer. When you assign permissions, you give users the capability to gain access to a CompTIA Certification(http://www.aplus-220-601.com) resource and you define the type of access that they have. For example, if several users need to read the same file, you would add their user accounts to a group. Then you would give the group permission to read the file. In addition to user accounts, you can add other groups, contacts, and computers to groups. You add groups to other groups to create a consolidated group certification provider(http://www.buyitexam.com) and reduce the number of times that you need to assign permissions. However, you should use caution to add only those groups that are absolutely necessary. You add computers to groups to simplify giving a system task on one computer access to a resource on another computer. Why This Chapter Matters?This chapter shows you how to configure your Active Directory physical structure by configuring sites and replication. When you are faced with managing free CompTIA exam questions(http://www.examshots.com/vendor/CompTIA-4.html) geographically spread out Active Directory infrastructure, you'll need to understand replication. There are two types of replication: intersite and intrasite. Intrasite is the default replication type that occurs as soon as you place the second domain controller in a domain. Intersite replication occurs when you create sites. You use sites to control data replication between domain controllers. To implement a site topology, you'll need to know how to configure sites and intersite replication. To configure intersite replication, you must be familiar with site links and their attributes of cost, frequency, and scheduling. You must know why it's not always necessary to designate a preferred bridgehead server, site link bridges, or connection objects.
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