Exam Essentials

Know how to create a serviced component.  Serviced components inherit from the System.EnterpriseServices namespace, ServicedComponent class. Know how to consume a serviced component from a .NET client application.

Be familiar with the properties and methods of the ServicedComponent class. Understand when to add code to the Activate and Deactive events.

Be familiar with the properties and methods of the ContextUtil class. Understand when to mark a class as<AutoComplete(True)> and when to use .SetComplete in your code.

Understand the ACID properties. Atomicity, Consistency, Isolation, and Durability. These properties ensure that all of the work of a transaction is completed or everything is rolled back. They also mean that other users will not see the results until a transaction is complete and the resulting data will be stored permanently.

Understand the command-line utilities provided with Visual Studio .NET. The tlbimp.exe utility imports the type library from a COM component so that it is usable by .NET assemblies. The tlbexp.exe utility exports a type library from a .NET component so that it is usable by COM. The regscvs.exe utility registers a .NET component for .NET Enterprise Services. The regasm.exe utility registers a .NET component for COM interoperability. The ildasm.exe utility enables you to view the Intermediate language generated by the .NET Framework compilers. The sn.exe utility creates a public key/private key pair that can be used for strong-naming assemblies.

Understand how to make a .NET component visible to COM clients.  Know what attributes to apply to your code. Know how to expose an interface to COM clients. Know how to register an assembly for use by COM clients.

Understand how to call functions from unmanaged DLLs.  In .NET you create a class, which will contain methods that wrap the unmanaged function call.