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are troubleshooting connectivity problems reported by the network administrator for the 70-270 practice ) Research department, which has two Windows Server 2003 computers and 100 Windows XP Professional client computers. One of the administrators for Research reports that he sees DNS registration errors in the Event Viewer and also sees errors when he runs the Netdiag utility.In this section [link widoczny dla zalogowanych], you'll troubleshoot this problem using the DNS console and the Netdiag utility. To make this lab more realistic, you'll actually create a problem by deleting the PDC emulator DNS record. You'll learn the significance of the PDC emulator in Chapter 4.To cancel the PDC emulator DNS log, execute the emulating steps:1.On Serverl, log on as Administrator to the contoso.com the DNS console. (You can do this in one of two ways: Click Start, select Administrative Tools, and then click DNS; or Click Start, then Run, and typednsmgmt.msc in the Open dialog carton. Click the SERVER1 thing. Expand the following objects: Forward lookup Zones, pdc, and then the tcp the _ldap record in the right-hand pane. Right press the record and then elect Delete. Click Yes apt confirm the object and click Properties on the resulting environment list. You'll watch the Properties dialog box General tab the Dynamic Updates alternative box apt peruse the DNS Serverl.At this point you've purposely created a free 70-270 test ) connectivity issue and deleted a significant DNS record. Typically, an supervisor wouldn't purposely occasion such a problem. However [link widoczny dla zalogowanych], DNS problems deserving to blunders, absence of administrator perception, and network connectivity issues are very prevalent. For instance, changing the domain member of a domain controller could potentially outcome in a DNS configuration error for documented in Microsoft Knowledge Base Article 311354: "Event 5781 Occurs After DC Changes Domain."Create multiple domains to encounter security requirements, encounter magisterial requirements, optimize replication traffic, or retain Windows NT domains.Although the suggested digit of trees in a jungle namely an, you might absence to define more than 1 tree if your union has more than one DNS appoint.Adding a domain or tree increases administrative and hardware prices.The recommended number of forests is one. Consider creating multiple forests if you need to safe file or you need to isolate catalogue replication.Adding a forest dramatically increases administrative and usability costs and can instantly influence users during the logon free practice ) and query processes.You are troubleshooting connectivity problems reported by the network administrator for the 70-270 practice ) Research ministry, which has 2 Windows Server 2003 computers and 100 Windows XP Professional customer calculators. One of the administrators as Research reports namely he sees DNS registration errors in the Event Viewer and too sees errors when he escapes scampers the Netdiag utility.In this section, you'll troubleshoot this problem using the DNS console and the Netdiag utility. To make this laboratory extra matter-of-fact, you'll really create a problem at deleting the PDC emulator DNS record. You'll learn the significance of the PDC emulator in Chapter 4.To delete the PDC emulator DNS record, perform the following steps:1.On Serverl, record on as Administrator to the contoso.com the DNS console. (You can do this in one of two ways: Click Start, select Administrative Tools, and then click DNS; alternatively Click Start, then Run, and typednsmgmt.msc in the Open dialog box. Click the SERVER1 object. Expand the following objects: Forward lookup Zones, pdc [link widoczny dla zalogowanych], and then the tcp object.4.