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 13698

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

3 15570

What is In-proc?

4 25624

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 6033

What is a moniker ?

3 9462

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

2 8032

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

1 7567

Define and explain COM?

Microsoft,

8 31795

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

Microsoft,

3 11693

how you call a dll as a COM dll.

2 7214

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

8 20167

Differentiate normal DLL to COM DLL

Talisma,

7 24162

Futures of COM

MIT,

3 8538

how do you know it is general dll or com dll

5 11294

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

Wipro,

1 7836

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Un-Answered Questions { COM DCOM }

What is reference counting in com?

1012

how to call a dll as a COM dll?

1218

Can I use com components from .net programs?

1141

How do we create dcom object in vb6?

1177

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

2669

How to create an instance of the object in COM?

1029

Does .net replace com?

1093

Define and explain about COM?

1171

What is the use of com component in .net?

1038

Can you explain what is dcom?

974

What is dcom?

1034

What is the difference between aggregated and contained objects?

1046

What are queued components?

1123

Suppose 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?

1030

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

1111

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