tailieunhanh - mcts training kit 70 - 685 Windows 7 Enterprise Desktop Support Technician phần 8

Mặc dù bạn có thể giải quyết vấn đề này bằng cách tạo ra một quy tắc cho phép yêu cầu Echo ICMP trong giao diện điều khiển WFAS, bạn cũng có thể cấu hình một khách hàng để đáp ứng với ping đơn giản bằng cách tạo ra một ngoại lệ cho chia sẻ file và máy in trong Control Panel. | The Windows Boot Loader uses the control set identified by the Select Default value unless you choose the Last Known Good Configuration from the Advanced Boot Options menu. The kernel creates the registry key HKEY_LOCAL_MACHINE HARDWARE which contains the hardware data collected at system startup. Windows supports an extensive set of devices with additional drivers not on the Windows operating system DVD provided by hardware manufacturers. Drivers are kernel-mode features required by devices to function within an operating system. Services are features that support operating system and application functions and act as network servers. Services can run in a different context than user applications and typically do not offer many user-configurable options. For example the Print Spooler service does not require a user to be logged on to run and functions independently of the user who is logged on to the system. Drivers generally communicate directly with hardware devices whereas services usually communicate with hardware through drivers. Driver and service files are typically stored in the SystemRoot System32 and SystemRoot System32 Drivers folders and use .exe .sys or .dll file name extensions. Drivers are also services. Therefore during kernel initialization the Windows Boot Loader and Ntoskrnl use the information stored in the HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services Servicename registry subkeys to determine both the drivers and services to load. In the Servicename subkeys the Start entry specifies when to start the service. For example the Windows Boot Loader loads all drivers for which Start is 0 such as device drivers for hard disk controllers. After execution is transferred to the kernel the kernel loads drivers and services for which Start is 1. Table C-1 lists the values in decimal for the registry entry Start. Boot drivers those for which Start is 0 and file system drivers are always loaded regardless of the value of Start because they are .

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