COM DCOM Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

COM DCOM Interview Questions

Questions Answers Views Company eMail

What happens when client calls CoCreateInstance?

Cap Gemini,

2 13596

What is the difference, if any, between OLE and COM?

3 15435

What is In-proc?

4 25454

Let?s 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?s the difference between aggregated and contained objects?

3 5888

What is a moniker ?

3 9335

C is aggregated by B, which in turn aggregated by A. Our client requested C. What will happen?

2 7945

How to Use structs in COM interfaces when Automation compatibility is not an issue?

1 7490

Define and explain COM?

Microsoft,

8 31482

Do COM keep track of all the object references(Accounting)?

Microsoft,

3 11583

how you call a dll as a COM dll.

2 7112

When you call CoInitialize(NULL) function how it works internally.

8 19900

Differentiate normal DLL to COM DLL

Talisma,

7 23933

Futures of COM

MIT,

3 8417

how do you know it is general dll or com dll

5 11150

Write a JCL to copy only selected members from a partitioned data set to another partitioned data set. (Use: IEBCOPY)

Wipro,

1 7766

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Un-Answered Questions { COM DCOM }

Suppose we have object B and aggregated object C (in- proc server), created by B. Can you access any interface of B from C?

989

Explain Futures of COM?

1007

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

2601

Can you explain what is dcom?

924

What is reference counting in com?

958

What is dcom?

982

Can I use com components from .net programs?

1074

How to create an instance of the object in COM?

964

How do we create dcom object in vb6?

1121

What are queued components?

1057

What is the difference between aggregated and contained objects?

998

What is the use of com component in .net?

1006

Once I have developed the com wrapper do I have to still register the com in registry?

1070

Is dcom dead?

1044

how to call a dll as a COM dll?

1169

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