COM DCOM Interviews Questions
And
Answers
Q: Do COM keep track of all the object references (Accounting)?
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Q: Define and explain COM?
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Q: How to Use structs in COM interfaces when Automation
compatibility is not an issue?
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Q: C is aggregated by B, which in turn aggregated by A. Our
client requested C. What will happen?
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Q: What is a moniker ?
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Q: Let? assume we have object B and aggregated object C (in-
proc server), created by B. Can you access any interface of
B from C? What? the difference between aggregated and
contained objects?
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Q: What is In-proc?
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Q: What is the difference, if any, between OLE and COM?
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Q: What happens when client calls CoCreateInstance?
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Q: How can would you create an instance of the object in COM
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Q: What should QueryInterface functions do if requested object
was not found?
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Q: What are the purposes of AddRef, Release and QueryInterface
functions
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Q: What is IUnknown? What methods are provided by IUnknown?
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Q: Which tool is used to configure the port range and
protocols for DCOM communications?
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Q: What are the different compatibility types when we create a
COM component?
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