.NET Interview Questions

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Which of the following can be declared in an interface?Properties Methods Enumerations Events Structures A. 1, 3 B. 1, 2, 4 C. 3, 5 D. 4, 5

Rajesh Singh
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11

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A class consists of two interfaces with each interface consisting of three methods.The class had no instance data. Which of the following indicates the correct size of object created from this class? a) 12 bytes b) 16 bytes c) 0 bytes d) 24 bytes

Rajesh Singh
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Which of the following can be used to declare an interface correctly? a) Properties b) Methods c) Structures d) Events

Rajesh Singh
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If a class inheriting an abstract class does not define all of its functions then it is known as? a) abstract b) A simple class c) Static class d) None of the mentioned

Rajesh Singh
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4

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What we do For avoiding Sql injection attack?

Sandeep Kumar
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The modifier used to define a class which does not have objects of its own but acts as a base class for its subclass is? a) Sealed b) Static c) New d) abstract

Rajesh Singh
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What is the need of .Net framework ?

Kumar Bhimsen
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How to get only schema of a table in ADO.NET? a. DataAdapter.Fill(Dataset); b. DataAdapter.Schema(Dataset,“TableName”); c. DataAdapter.FillSchema(Dataset); d. DataAdapter.GetSchema(Dataset,”TableName”);

Rajesh Singh
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You have recently developed a Class named “ShopList”. The class is having Public properties Name, ID, Discount. You need to enable the users of the class to iterate through the ShopList collections. Which of the following code snippet will you use? a. public class ShopList : IEnumerator, IEnumerable { // Class implementation } b. public class ShopList : IBindingList { // Class implementation } c. public class ShopList : IDictionary { // Class implementation } d. public class ShopList : ICollection { // Class implementation }

Rajesh Singh
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If a Class is inheriting an interface then a. Inherit the properties of the interface. b. Contain the same methods from the interface. c. Create an interface object. d. All

Rajesh Singh
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How do you prevent a class from being inherited? a. By making the class as Private. b. By making the class as private and using sealed keyword. c. By making the class as protected and using sealed keyword. d. By making the class as Sealed.

Rajesh Singh
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What is the difference between Dispose() and Finalize() methods? a. Dispose() method will remove the resources to a class and Finalize() will release the memory for a class. b. Dispose() method is used for a class and Finalize() method is for a class method. c. Dispose() will be called by programmer explicitly and Finalize() method is called by Garbage Collector implicitly. d. All.

Rajesh Singh
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2. How many default Constructors can a class have? a. 1 b. 2 c. None d. Many

Rajesh Singh
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1. What is default Access Modifier of a Class? a. Public b. Private c. Protected d. Internal

Rajesh Singh
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How many method is there to remove unreachable object from memory?

Sandeep Kumar
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