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Writing a WMI provider is significantly more complicated than writing a WMI consumer. In unmanaged code, it means writing a COM server that implements several interfaces and is registered on the system as a WMI provider. In managed code (at least as of the release of .NET Framework 3.5), this has become significantly easier. You can now write a WMI provider that is nothing more than a .NET assembly decorated with a few attributes, which contains a managed class that serves as the WMI object. You can publish events, invoke methods of WMI objects, and dynamically change the set of objects exposed by the provider the entire set of the WMI functionality is now at the fingertips of any managed developer. Still, the vast

To apply and use the Presentation power scheme, click OK. When you have finished the presentation, in the notification area, right-click the battery meter icon, and then click Adjust Power Options.

The source address of the computer that sent the message The destination address of the computer that received the frame Header information of each protocol used to send the frame The data (or a portion of it) being sent to the destination computer

Lesson Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-9

The evaluation edition software provided with this training kit includes Service Pack 1. Install Service Pack 1 (CD1) to complete the exercises in this training kit. Do not install R2 (CD2) until you have completed the exercises. This version of R2 is for your reference only. It is not covered in the 70-290 exam and therefore is not covered in this training kit.

802.11b wireless connection An industry standard for communicating through a wireless network. These network connections support a maximum bandwidth of 11 Mbps. basic input/output system (BIOS) A computer s BIOS program determines in what order the computer searches for system files on boot up, manages communication between the operating system and the attached devices on boot up, and is an inte gral part of the computer. IrDA Short for Infrared Data Association, a type of port installed on newer comput ers, printers, and other devices that allows them to communicate wirelessly. IrDA ports transmit data at about the same rate as a parallel port does, and the devices must be in close proximity and have a clear line of sight between them.

Many wireles connection problems are related to security. The precise steps involved in setting up security depend on the type of WAP (third-party WAP device or Wi-Fi enabled Windows Vista computer) you have installed on your network. This section discusses the settings available in most WAPs and ways in which you can increase wireless network security. You can take the following steps to increase security in your own or your employer s wireless network:

SSL tunneling With SSL tunneling, the SSL connection is set up directly between the client computer and the Web server. In this scenario, the ISA Server computer does not encrypt or decrypt the network packets but merely forwards encrypted packets between the client and the Web server. ISA Server cannot inspect the content of the packets because the contents are encrypted as they pass through the ISA Server computer. SSL bridging With SSL bridging, the ISA Server computer acts as the end point for one or more SSL connections. The network packets can still be encrypted from the Web client to the Web server, however, in an SSL bridging scenario, the ISA Server computer will decrypt network traffic from the client computer and then re-encrypt it before sending it to the Web server. The ISA Server computer will accept the encrypted reply packets from the Web server, decrypt them, and then encrypt the packets again before sending them back to the client. ISA Server can be configured to require SSL connections from clients, or SSL connections when connecting to Web server, or both. In an SSL bridging scenario, ISA Server can inspect the HTTP packets while they are not encrypted.

queue = new MessageQueue(path);