what is oops

Accenture,

Explain transaction atomicity?

Explain object pooling?

HCL,

Explain JIT activation?

Which namespace do the classes, allowing you to support COM functionality, are located?

How do you make a NET component talk to a COM component?

TCS,

Explain queued components.

How does a DCOM component know where to instantiate itself?

What kind of components can be used as DCOM servers?

What are the different compatibility types when we create a COM component?

TCS,

Which tool is used to configure the port range and protocols for DCOM communications?

What is IUnknown? What methods are provided by IUnknown?

IBM,

What are the purposes of AddRef, Release and QueryInterface functions

What should QueryInterface functions do if requested object was not found?

How can would you create an instance of the object in COM