Microsoft .NET Interview Questions and Answers
Test your skills through the online practice test: Microsoft .NET Quiz Online Practice Test
Ques 51. Write some code to box and unbox a value type.
// Boxing
int i = 4;
object o = i;
// Unboxing
i = (int) o;
Is it helpful?
Add Comment
View Comments
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.
Is it helpful?
Add Comment
View Comments
Ques 53. What is a pointer?
A pointer is a reference to a memory address.
Is it helpful?
Add Comment
View Comments
Ques 54. What does new do in terms of objects?
Initializes an object.
Is it helpful?
Add Comment
View Comments
Ques 55. How do you dereference an object?
Set it equal to null.
Is it helpful?
Add Comment
View Comments
Most helpful rated by users:
- .NET Stands for?
- Name 10 C# keywords.
- What is public accessibility?
- What is protected accessibility?
- What is protected internal accessibility?