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C# Online Test

  1. C# was developed by
  2. Which of the following is the valid size of float data type?
  3. Which of the following String method is used to compare two strings with each other?
  4. Which of the following Syntax is used for declaration and initialization of data variable?
  5. Which of the following is the subset of ‘int’ data type?
  6. _________converts a type to a signed byte type in C#.
  7. Which of the following option is default access specifier of a class?
  8. Which of the following keyword is used to refer baseclass constructor to subclass constructor?
  9. Which of the following keyword is used for correct implementation of an interface in C#.NET?
  10. Which of following constructors is used to create an empty String object?
  11. We use _________ to fully abstract a class from its implimentation.
  12. C# class is inherit the multiple ____________.
  13. Which of the following option is correct about indexer?
  14. Which of the following option is correct about ReadOnly variables?
Last Updated: Jun 14, 2022,
Posted in Interview Questions,
30 Questions
C# MCQ

Take C# MCQ Test to Test your Knowledge 

We have listed below the best C# MCQ Questions, that checks your basic knowledge of C#. This C# MCQ Test contains 30 best C# Multiple Choice Questions. You have to choose the right answer for every question. You can also download the C# MCQ Pdf for the best preparation of the C#/C sharp Interview.

Also, Read Best C# Interview Questions.

  • Bjarne Stroustrup
  • Anders Hejlsberg
  • Dennis M. Ritchie
  • Rasmus Lerdorf
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  • 4 Bytes
  • 6 Bytes
  • 8 Bytes
  • 10 Bytes
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  • Compare To()
  • ConCat()
  • Compare()
  • Copy()
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  • ;
  • = ;
  • ;
  • = ;
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  • long, ulong, uint
  • long, float, double
  • long, float, ushort
  • long, ulong, ushort
Download Free : C# MCQ PDF
View Answer
  • ToSingle
  • ToInt64
  • ToSbyte
  • ToInt32
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  • Protected
  • Internal
  • Private
  • Public
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  • static
  • This
  • base
  • extend
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  • Interface
  • interface
  • intf
  • Intf
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  • String(void)
  • String()
  • String(0)
  • All of the above
Read Best: C# Interview Questions
View Answer
  • Interfaces
  • objects
  • Packages
  • Function Definitions
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  • Static classes
  • Interfaces
  • Classes
  • Abstract classes
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  • It allows enumerator with class
  • It creates index for instances of a class.
  • It allows an instance of a class to be indexed like an array
  • None of These
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  • Value will be assigned when it accessed first time
  • Value will be assigned at compile time.
  • Value will be assigned at runtime.
  • All of the above
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  • Local Integration Query
  • Language Integrated Query
  • Language Included Query
  • None of the above
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View Answer
  • int intArray[] = new int[5];
  • int[] intArray = new int[];
  • int[5] intArray = new int[];
  • int[] intArray = new int[5];
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  • Pre-defined data type
  • Copy of class that is not initialized.
  • Copy of class creating by an existing instance.
  • Copy of class which leads to memory allocation.
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  • Queue
  • BitArray
  • Stack
  • All of the above
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  • Process
  • Math
  • System
  • Object
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  • Absolute()
  • Abs()
  • Absolutevariable()
  • All of the above
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  • 8.0
  • 7.0
  • 9.0
  • 9.1
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  • .cs
  • .csx
  • .csp
  • both .cs & .csx
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  • 0
  • 1
  • True
  • False
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  • To get desired data
  • To store a value of one data type into a variable of another data type
  • To prevent situations of runtime error during change or conversion of data type
  • None of above
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  • Explicit Conversion
  • Implicit Conversion
  • both Explicit & Implicit Conversion
  • None of above
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  • Potentially Unsafe
  • Results in loss of data
  • Makes program memory heavier
  • None of above
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  • /
  • **
  • +
  • %
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  • Only once.
  • As many times as we call it.
  • Any number of times before the object is deleted.
  • None of above
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  • Friend Assemblies
  • Private Assemblies
  • Public Assemblies
  • Shared Assemblies
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  • System.Type
  • System.Base
  • System.Object
  • System.Root
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