Miscellaneous In C Sharp — Part 1 MCQs with Explanations

To import external libraries is the correct answer to “What is the purpose of the "using" keyword in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Exits the switch statement is the correct answer to “What does the "break" keyword do in a switch statement”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

protected is the correct answer to “Which of the following is NOT a valid C# access modifier”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

The current class instance is the correct answer to “What does the "this" keyword refer to in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

To perform asynchronous operations is the correct answer to “What is the purpose of the "async" and "await" keywords in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Passing array of arguments is the correct answer to “What does the "params" keyword allow in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Checks if an object is of a certain type is the correct answer to “What does the "is" keyword do in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

The type of a specified object is the correct answer to “What does the "typeof" operator return in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

0 is the correct answer to “What is the default value of an integer variable in C# if it is not explicitly initialized”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

To perform type casting is the correct answer to “What is the purpose of the "as" keyword in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

repeat-until is the correct answer to “Which of the following is NOT a valid C# loop construct”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Prevents a class from being inherited is the correct answer to “What does the "sealed" keyword do in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Imports namespaces is the correct answer to “In C#, what does the "using" directive do”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Passing parameters by reference is the correct answer to “What does the "ref" keyword allow in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Automatically disposes resources is the correct answer to “What does the "using" keyword do in the context of IDisposable objects in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Calls a method in the base class is the correct answer to “What is the purpose of the "base" keyword in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Properties encapsulate fields is the correct answer to “Which of the following statements about properties in C# is true”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Constructors are called when an object is created is the correct answer to “Which of the following statements about constructors in C# is true”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Marks a class as incomplete is the correct answer to “What does the "abstract" keyword indicate in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Defines a reference type for methods is the correct answer to “What is the purpose of the "delegate" keyword in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

FALSE is the correct answer to “What is the default value of a boolean variable in C# if it is not explicitly initialized”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Returning multiple values is the correct answer to “What does the "out" keyword allow in C# method parameters”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Specifies an implicitly typed variable is the correct answer to “What does the "var" keyword do in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

string to int is the correct answer to “Which of the following is NOT a valid type conversion in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

To indicate an output parameter is the correct answer to “What does the "out" keyword do in C# method parameters”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

To perform asynchronous operations is the correct answer to “What does the "async" and "await" keywords do in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Performs type casting is the correct answer to “What does the "as" keyword do in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Returns the type of a specified object is the correct answer to “What is the purpose of the "typeof" operator in C#”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

1 2 1 2 is the correct answer to “What will be the output of the following C# code snippet? public class A { public int x; public int y; public void display() { Console.WriteLine(x + " " + y); } } class Program { static void Main(string[] args) { A obj1 = new A(); A obj2 = new A(); obj1.x = 1; obj1.y = 2; obj2 = obj1; obj1.display(); obj2.display(); } }”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

Wait() is the correct answer to “Which method is called when a thread is blocked from running temporarily”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

public, private, protected, internal, protected internal is the correct answer to “Accessibility modifiers defined in a class are”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

a mutually exclusive synchronization object is the correct answer to “What is mutex”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

String() is the correct answer to “Which of these constructors is used to create an empty String object”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

System.Web is the correct answer to “Which among the following is a .NET namespace”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

False is the correct answer to “What will be the output of the following C# code snippet? class Program { static void Main(string[] args) { String c = "Hello i love Csharp"; Boolean var; var = c.StartsWith("hello"); Console.WriteLine(var); Console.ReadLine(); } }”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

U T S R Q P O N M L is the correct answer to “What will be the following C# code snippet specify? class MyClass { char chrs = 'A' ; public IEnumerator GetEnumerator() { for (int i = 20; i >=0; --i) if (i == 10) yield break; yield return (char)((chrs + i)); } } class Program { static void Main(string[] args) { MyClass mc = new MyClass(); foreach (char ch in mc) Console.Write(ch + " "); Console.WriteLine(); Console.ReadLine(); } }”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

one two is the correct answer to “What will be the output of the following C# code snippet? class Program { static void Main(string[] args) { String s1 = "one"; String s2 = string.Concat(s1 + " " + "two"); Console.WriteLine(s2); Console.ReadLine(); } }”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

13, 10, 7 is the correct answer to “What will be the output of the following C# code snippet? class UnsafeCode { unsafe static void Main() { int* ptrs = stackalloc int[3]; ptrs[0] = 1; ptrs[1] = 2; ptrs[2] = 3; for (int i = 2; i >= 0; --i) { ptrs[i] = ptrs[i]* 3; ptrs[i] = ptrs[i] + 4; Console.WriteLine(ptrs[i]); } Console.ReadLine(); } }”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

System.String is the correct answer to “Choose the base class for string() method.”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.

returns the next object in the collection is the correct answer to “What does the yield return statement specify in the following C# code snippet? public System.Collections.IEnumerator GetEnumerator() { foreach (char ch in chrs) yield return ch; }”. This question is standard in competitive examination syllabi for Miscellaneous In C Sharp.