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A final management feature associated with the Ports node is the Port Status dialog box. When you select the Ports node in the Routing And Remote Access console, the list of connection ports is listed in the details pane. This list includes the available modem device or devices. You can view details about the status of a modem by double-clicking the modem device and opening the Port Status dialog box. This dialog box presents sta tistics about a modem (when active) and allows you to reset the modem connection.

SQL Server: SQL Statistics: Batch Requests/sec SQL Server: SQL Statistics: SQL Compilations/sec SQL Server: SQL Statistics: SQL Recompilations/sec

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These management features are accessible through the IP Routing node of the Routing And Remote Access console. When you select the General node within the IP Routing node, the interfaces configured for your server appear in the details pane. Rightclicking a demand-dial interface reveals various demand-dial management and troubleshooting commands, as shown in Figure 9-24.

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9

Lesson 1 taught that CAS can restrict permissions granted to an application. Because of this, you must plan to have your application run in a partially trusted security context. In some situations, CAS security will be so restrictive that your application won t have the permissions required for even the most basic functionality, and the runtime should detect this problem and prevent your assembly from running. In other situations, your application will have more permissions than necessary, which violates the principle of least privilege and makes your application unnecessarily vulnerable to abuse. You can use declarative CAS demands to ensure your assembly has all necessary permissions, but none that it does not require. As an additional benefit, administrators deploying your application can examine the assembly s declarative CAS demands to identify the minimum permissions they need to grant to take advantage of all your application s functionality.

Figure 9-24

If these counters indicate a high number of recompiles, you then need to look at the SP:Recompile and SQL: StmtRecompile event classes in a Profiler trace to determine which stored procedures SQL Server recompiles. The following list shows the key data columns you should monitor:

Update Routes This command appears on the shortcut menu of the IP Routing demand-dial interface. When the RIP routing protocol is installed and this feature is enabled, selecting the Update Routes command automatically updates the static routes across the demand-dial interface. Static routes updated with this command require no further configuration and are thus known as autostatic routes. Because of the intermittent nature of dial-on-demand connections, autostatic routes for these connections are used in place of normal router-to-router communication through RIP. Note also that you can update autostatic routes automatically by using a script scheduled to run peri odically by the Task Scheduler service. TCP/IP Statistics The next group of features available on this shortcut menu allows you to view current TCP/IP information such as that available with the command-line commands Ipconfig, Route Print, and Netstat. You can use this information, which includes details about active TCP and User Datagram Protocol (UDP) connections, bytes sent, and assigned IP addresses, to verify and troubleshoot network connectivity. IP Routing Interface Properties Finally, the demand-dial interface shortcut menu allows you to open the demand-dial interface properties dialog box, shown in Figure 9-25. This dialog box is distinct from the demand-dial interface properties dialog box available when the Network Interfaces node is selected. This dialog box contains three tabs: General, Multicast Boundaries, and Multicast Heartbeat. Because multicasting is not covered on the 70-291 exam, only the General tab configuration options are dis cussed here.

Describe why you should use CAS assembly declarations. List the classes built into the .NET Framework for CAS permissions. List the three types of CAS assembly declarations. Create CAS assembly declarations. Explain the guidelines for effectively implementing CAS assembly declarations.

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Figure 9-25