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 13608

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

3 15451

What is In-proc?

4 25476

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 5918

What is a moniker ?

3 9346

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

2 7955

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

1 7497

Define and explain COM?

Microsoft,

8 31512

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

Microsoft,

3 11594

how you call a dll as a COM dll.

2 7122

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

8 19933

Differentiate normal DLL to COM DLL

Talisma,

7 23960

Futures of COM

MIT,

3 8423

how do you know it is general dll or com dll

5 11173

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

Wipro,

1 7770

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Un-Answered Questions { COM DCOM }

how to call a dll as a COM dll?

1178

What is the use of com component in .net?

1011

What is the difference between aggregated and contained objects?

1001

How do we create dcom object in vb6?

1126

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?

981

What is reference counting in com?

963

Is dcom dead?

1054

Can you explain what is dcom?

925

How to create an instance of the object in COM?

972

What is dcom?

992

Can I use com components from .net programs?

1084

Can I use .net components from com programs?

1047

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

996

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

1075

Explain Futures of COM?

1010

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