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 13595

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

3 15433

What is In-proc?

4 25450

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 5880

What is a moniker ?

3 9333

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

2 7942

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

1 7486

Define and explain COM?

Microsoft,

8 31479

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

Microsoft,

3 11581

how you call a dll as a COM dll.

2 7109

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

8 19893

Differentiate normal DLL to COM DLL

Talisma,

7 23927

Futures of COM

MIT,

3 8414

how do you know it is general dll or com dll

5 11143

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

Wipro,

1 7763

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Un-Answered Questions { COM DCOM }

What is reference counting in com?

957

Explain Futures of COM?

1006

how to call a dll as a COM dll?

1168

Define and explain about COM?

1104

Is dcom dead?

1043

What is the use of com component in .net?

1003

Can you explain what is dcom?

922

What are queued components?

1056

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

2597

Can I use .net components from com programs?

1041

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

1070

How do we create dcom object in vb6?

1120

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?

971

How to create an instance of the object in COM?

961

What is dcom?

981

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