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 12595

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

3 13955

What is In-proc?

4 23935

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 4759

What is a moniker ?

3 8164

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

2 6709

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

1 6664

Define and explain COM?

Microsoft,

8 29397

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

Microsoft,

3 10268

how you call a dll as a COM dll.

2 6051

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

8 17504

Differentiate normal DLL to COM DLL

Talisma,

7 21823

Futures of COM

MIT,

3 7270

how do you know it is general dll or com dll

5 9683

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

Wipro,

1 6971

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Un-Answered Questions { COM DCOM }

What are queued components?

591

Is dcom dead?

629

Can I use com components from .net programs?

613

how to call a dll as a COM dll?

726

What is the difference between aggregated and contained objects?

576

How do we create dcom object in vb6?

702

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?

509

Can I use .net components from com programs?

613

What is reference counting in com?

560

Define and explain about COM?

617

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

589

Does .net replace com?

561

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

663

Explain Futures of COM?

581

Can you explain what is dcom?

549

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