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Microsoft .NET 면접 질문과 답변

Test your skills through the online practice test: Microsoft .NET Quiz Online Practice Test

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Ques 51. Write some code to box and unbox a value type.

// Boxing
int i = 4;
object o = i;
// Unboxing
i = (int) o;

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Ques 52. What is a heap and a stack?

There are 2 kinds of heap – 1: a chunk of memory where data is stored and 2: a tree
based data structure. When we talk about the heap and the stack we mean the first kind
of heap. The stack is a LIFO data structure that stores variables and flow control
information. Typically each thread will have its own stack.

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Ques 53. What is a pointer?

A pointer is a reference to a memory address.

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Ques 54. What does new do in terms of objects?

Initializes an object.

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Ques 55. How do you dereference an object?

Set it equal to null.

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