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 12534

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

3 13852

What is In-proc?

4 23891

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 4710

What is a moniker ?

3 8108

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

2 6603

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

1 6622

Define and explain COM?

Microsoft,

8 29278

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

Microsoft,

3 10206

how you call a dll as a COM dll.

2 6009

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

8 17381

Differentiate normal DLL to COM DLL

Talisma,

7 21744

Futures of COM

MIT,

3 7212

how do you know it is general dll or com dll

5 9603

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

Wipro,

1 6935

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Un-Answered Questions { COM DCOM }

What are queued components?

575

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?

495

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

2089

What is the difference between aggregated and contained objects?

555

What is dcom?

529

How do we create dcom object in vb6?

679

Explain Futures of COM?

568

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

572

Can I use com components from .net programs?

586

What is reference counting in com?

543

Define and explain about COM?

598

What is the use of com component in .net?

580

Can I use .net components from com programs?

590

Does .net replace com?

549

Can you explain what is dcom?

536

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