MCSD Programming in C#

Question 1

Which keyword in C# is used to prevent a class from being inherited?

Accepted Answer

sealed

Answer

static

Answer

abstract

Answer

readonly

Question 2

What does the `async` keyword do when applied to a method in C#?

Accepted Answer

Marks the method as asynchronous, allowing use of await

Answer

Runs the method on a new thread

Answer

Compiles the method ahead-of-time

Answer

Makes the method static

Question 3

Which collection in C# is thread-safe and designed for concurrent scenarios?

Accepted Answer

ConcurrentDictionary<K,V>

Answer

List<T>

Answer

Dictionary<K,V>

Answer

ArrayList

Question 4

What is the purpose of the `using` statement in C#?

Accepted Answer

Ensures IDisposable objects are properly disposed

Answer

Imports a namespace

Answer

Declares a variable

Answer

Defines an alias for a type

Question 5

Which access modifier makes a member accessible only within its own class?

Accepted Answer

private

Answer

protected

Answer

internal

Answer

public

Question 6

What does LINQ stand for in C#?

Accepted Answer

Language Integrated Query

Answer

List Integration Queue

Answer

Linked Input Query

Answer

Language Input Notation Query