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One of the best ways to target multiple servers is by using replication. In many cases, no application changes are necessary, and by using multiple servers, applications are allowed to scale to whatever level is necessary. There are many types of replication, but one that you might want to consider is peer-to-peer replication. Peer-to-peer replication is a new feature added with SQL Server 2005. This low-overhead solution allows you to maintain copies of a database on multiple servers, while still allowing for updates. In peer-to-peer replication, each server will access its own copy of the database, but only one of the servers at a time will be allowed to update the data. Once the server updating the database has made the changes, a new copy of the database will be sent to the peers. If any of the other peers has made a similar change before the change is propagated to the others, a conflict could occur. For this reason, you want to implement this solution on servers where there is a low update frequency. In cases where there is a high update frequency, you might want to consider another scale-out option or consider using another replication type, such as merge replication. Merge replication does provide conflict resolution, but it consumes more server resources. In peer-to-peer replication, each peer acts as both a publisher and a subscriber. There is no master publisher that copies updates to read-only subscribers. Each peer is able to make updates and then copy the changes to all other peers. Because conflict resolution is not

Figure 3-9

Monitor Connectivity To This Server Or URL: www.microsoft.com Group Used To Categorize This Connectivity Verifier: Web (Internet) Verification Method: Send An HTTP GET Request

Practice 1: From Control Panel, select Date, Time, Language, And Regional Options. Note all of the options listed under the Pick A Task heading. Select Change The Format Of Numbers, Dates and Times, and look at the options available in the Regional And Language Options dialog box. Select French (France) from the drop-down menu, and note the changes made to the date, currency, and other information in the dialog box. Click Cancel to end without applying your changes. Practice 2: From Control Panel, select Date, Time, Language And Regional Options. From the Pick A Task list, select Add Other Languages. Note the options available in the Regional And Language Options dialog box. Practice adding another language to your computer.

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In this practice, you will install Terminal Server on Server02, configure a user account to enable Terminal Server logon, and configure device redirection. To perform this practice, you will need a second computer installed with Windows Server 2003, named Server02, and belonging to the contoso.com domain.

CREATE TYPE Sci_Measure FROM decimal (8,3) NOT NULL ;

ment console to recreate the striped volume across the original disk and the replacement. Use the Backup Utility to restore the data to the striped volume from the backup sets made on Sunday, Monday, Tuesday, Wednesday, and Thursday.

This practice session introduces the Profiler tool. In a production environment, you capture a Profiler trace while running a database application or a complex query that stresses a server or a SQL Server instance. In this practice session, you capture a trace while running simple queries and extracting information from a DMV.

Review the chapter summary. Review the list of key terms introduced in this chapter. Complete the case scenarios. These scenarios set up real-world situations involving the topics of this chapter and ask you to create a solution. Complete the suggested practices. Take a practice test.

Now that you understand the basic non-secure mode, look at how the binding elements change when security is added. First, if the security mode is set to Transport, HTTPS transmits the message. This means that HttpTransportBindingElement will be replaced by HttpsTransportBindingElement and, because HttpsTransportBindingElement derives from HttpTransportBindingElement, you need to consider only the extra members added to support HTTPS, as shown in Table 5-7.

In an account organization, configuring the trust policy, creating claims for your users, and, finally, configuring the AD DS account store for identity federation. In a resource organization, configuring the trust policy creating claims for your users, configuring an AD DS account store for identity federation, and then enabling a claims-aware application.

Multiple policies can be added to an application by specifying additional <policy> elements. If multiple policies are configured, the WseConfigEditor3 can be used to edit the configuration file manually. If a policy is added manually, great care must be taken to ensure all necessary ele ments are entered and spelled correctly.