MCTS .NET Application Development 2

Question 1

Which .NET class is used to serialize an object to XML format?

Accepted Answer

XmlSerializer

Answer

BinaryFormatter

Answer

DataContractSerializer

Answer

JsonSerializer

Question 2

What is the purpose of the 'using' statement in C# when working with unmanaged resources?

Accepted Answer

It ensures Dispose() is called when the block exits

Answer

It imports a namespace

Answer

It declares a variable alias

Answer

It creates a new thread context

Question 3

In ASP.NET, which HTTP module is responsible for Forms Authentication?

Accepted Answer

FormsAuthenticationModule

Answer

WindowsAuthenticationModule

Answer

SessionStateModule

Answer

OutputCacheModule

Question 4

Which collection class in .NET provides O(1) lookup by key?

Accepted Answer

Dictionary<TKey, TValue>

Answer

List<T>

Answer

Queue<T>

Answer

SortedList<TKey, TValue>

Question 5

What does the 'sealed' keyword prevent in C#?

Accepted Answer

A class from being inherited

Answer

A class from being instantiated

Answer

A method from being overridden in the same class

Answer

A field from being modified

Question 6

In .NET, what is the role of the Common Language Runtime (CLR)?

Accepted Answer

It manages execution, memory, and security for .NET applications

Answer

It compiles C# source code to IL

Answer

It provides the .NET base class library

Answer

It handles HTTP requests in ASP.NET

Question 7

Which ADO.NET object is used to execute a stored procedure and retrieve a result set?

Accepted Answer

SqlCommand

Answer

SqlConnection

Answer

SqlDataAdapter

Answer

DataSet