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247Customer Dot Net AllOther Interview Questions
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1. How to restrict a class from allowing to create only one object. I.e., one should be allowed to create only one object of the class type.

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2. I've a class Parent Class A and a Derived Class B. Here is a scenario. I've an instance of Class A as objA and an instance of Class B as objB. I can refer a child class variable as objB=objA, but cannot do objA=objB what is the reason?

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It was told that .Net 2.0 Framework has got it's in built webserver. Does it mean that it doesn't need IIS? What is the significance of Front Page Server Extensions in creating or hosting a Web Application in .net?

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What is the difference between a web custom control,web user control and a web part.

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