Dot Net and C# Competitive and Interview MCQs with Answers

Dot Net and C# Competitive and Interview MCQs with Answers

C#.net multiple choice questions with answers | Dot Net and C# | .Net core MCQs questions and answers.

Dot Net is a versatile and powerful development platform. It has many features that make it an attractive choice for web development, software engineering, and other application development areas.

Additionally, Dot Net is popular among tech professionals as an interview platform because of its expansive knowledge base.  One common interview question is “What are some of the most important features of the Dot Net platform?”

Dot Net

C# is a popular and powerful programming language used in the development of Dot Net applications. It has become very popular in recent years and is used by many major organizations, such as Microsoft.

In order to succeed in an interview for a position with a company using Dot Net, you will need to be familiar with the language and its features. This Quiz provides MCQs and answers to help you prepare for your next Dot Net competition and interview.

Brief Introduction of Dot Net

Dot Net is an open-source, cross-platform framework for developing and running applications. The frameworks provide a comprehensive set of tools, libraries, and services that make it easy to create robust solutions that work on both Windows and Mac computers. Dot Net also allows developers to share code between different programs, making it a powerful tool for collaboration.

Brief Introduction of C#

C# is a powerful and versatile programming language that can be used for a variety of applications. It was designed in the early 1970s, and it is still widely used today. C# is particularly well-suited for systems programming, task management, and network programming.

Dot Net and C# MCQs with Answers

Q No. 1. CLR is the .NET equivalent of ___.
(a) Java Virtual Machine
(b) Common Language Runtime
(c) Common Type System
(d) Common Language Specification
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 2. The CLR is physically represented by an assembly named ___
(a) Mscoree.dll
(b) Mcoree.dll
(c) Msoree.dll
(d) Mscor.dll
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 3. SOAP stands for ___.
(a) Simple Object Access Program
(b) Simple Object Access Protocol
(c) Simple Object Application Protocol
(d) Simple Object Account Protocol
[expand title="Show Answer"]Answer: (B)[/expand]

Q No. 4. The ___ language allows more than one method in a single class
(a) C#
(b) J#
(c) C++
(d) C
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 5. In C#, a subroutine is called a ___.
(a) Function
(b) Metadata
(c) Method
(d) Managed code
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 6. HTTP, SSL are-
(a) Internet service
(b) Internet domains
(c) Internet protocol
(d) Window server
[expand title="Show Answer"]Answer: (B)[/expand]

Q No. 7. A ___ is an identifier that denotes a storage location
(a) Constant
(b) Reference type
(c) Variable
(d) Object
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 8. ___ are reserved, and cannot be used as identifiers.
(a) Keywords
(b) Literal
(c) Variables
(d) Identifiers
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 9. Boxing converts a value type on the stack to a ___ on the heap.
(a) Bool type
(b) Instance type
(c) Class type
(d) Object type
[expand title="Show Answer"]Answer: (D)[/expand]

Q No. 10. UDDI stands for-
(a) Universal data description & integration
(b) Universal datagram description implementations
(c) Universal description discover and integration
(d) Universal description data & integration
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 11. In C#, all binary operators are ___.
(a) Center-associative
(b) Right-associative
(c) Left-associative
(d) Top-associative
[expand title="Show Answer"]Answer: (B)[/expand]

Q No. 12. An ___ is a symbol that tells the computer to perform certain mathematical or logical manipulations.
(a) Operator
(b) Expression
(c) Condition
(d) Logic
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 13. A ___ is any valid C# variable ending with a colon.
(a) go to
(b) Label
(c) Logical
(d) Bitwise
[expand title="Show Answer"]Answer: (B)[/expand]

Q No. 14. C# has ___ operator, useful for making two-way decisions.
(a) Looping
(b) Functional
(c) Exponential
(d) Conditional
[expand title="Show Answer"]Answer: (D)[/expand]

Q No. 15. ___ causes the loop to continue with the next iteration after skipping any statements in between.
(a) Loop
(b) Exit
(c) Break
(d) Continue
[expand title="Show Answer"]Answer: (D)[/expand]

Q No. 16. An ___ is a group of contiguous or related data items that share a common name.
(a) Operator
(b) Integer
(c) Exponential
(d) Array
[expand title="Show Answer"]Answer: (D)[/expand]

Q No. 17. Arrays in C# are ___ objects
(a) Reference
(b) Logical
(c) Value
(d) Arithmetic
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 18. Multidimensional arrays are sometimes called ___ Arrays.
(a) Square
(b) Triangular
(c) Rectangular
(d) Cube
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 19. ___ parameters are used to pass results back to the calling method.
(a) Input
(b) Reference
(c) Value
(d) Output
[expand title="Show Answer"]Answer: (D)[/expand]

Q No. 20. The formal parameter list is always enclosed in ___.
(a) Square
(b) Semicolon
(c) Parenthesis
(d) Colon
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 21. ___ variables are visible only in the block they are declared.
(a) System
(b) Global
(c) Local
(d) Console
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 22. C# does not support ___ constructors.
(a) Parameterized
(b) Parameter-less
(c) Class
(d) Method
[expand title="Show Answer"]Answer: (B)[/expand]

Q No. 23. A structure in C# provides a unique way of packing together data of ___ types.
(a) Different
(b) Same
(c) Invoking
(d) Calling
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 24. Struct’s data members are ___ by default.
(a) Protected
(b) Public
(c) Private
(d) Default
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 25. A ___ creates an object by copying variables from another object.
(a) Copy constructor
(b) Default constructor
(c) Invoking constructor
(d) Calling constructor
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 26. The methods that have the same name, but different parameter lists and different definitions is called___.
(a) Method Overloading
(b) Method Overriding
(c) Method Overwriting
(d) Method Overreading
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 27. The C# provides special methods known as ___ methods to provide access to data members.
(a) Loop
(b) Functions
(c) Methods
(d) Accessor
[expand title="Show Answer"]Answer: (D)[/expand]

Q No. 28. When an instance method declaration includes the abstract modifier, the method is said to be an ___.
(a) Abstract method
(b) Instance method
(c) Sealed method
(d) Expression method
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 29. The theory of ___ implies that users can control access to a class, method, or variable.
(a) Data hiding
(b) Encapsulation
(c) Information Hiding
(d) Polymorphism
[expand title="Show Answer"]Answer: (B)[/expand]

Q No. 30. Inheritance is ___ in nature.
(a) Commutative
(b) Associative
(c) Transitive
(d) Iterative
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 31. The point at which an exception is thrown is called the ___.
(a) Default point
(b) Invoking point
(c) Calling point
(d) Throw point
[expand title="Show Answer"]Answer: (D)[/expand]

Q No. 32. In C#, having unreachable code is always an ___.
(a) Method
(b) Function
(c) Error
(d) Iterative
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 33. C# treats the multiple catch statements like cases in a ___ statement.
(a) If
(b) Switch
(c) For
(d) While
[expand title="Show Answer"]Answer: (B)[/expand]

Q No. 34. C# supports a technique known as___, which allows a method to specify explicitly the name of the interface it is implementing.
(a) Method Implementation
(b) Implicit Interface Implementation
(c) Explicit Interface Implementation
(d) Iterative Interface Implementation
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 35. The reason that C# does not support multiple inheritances is because of ___.
(a) Method collision
(b) Name collision
(c) Function collision
(d) Interface collision
[expand title="Show Answer"]Answer: (B)[/expand]

Q No. 36. ___ is a set of devices through which a user communicates with a system using an interactive set of commands.
(a) Console
(b) System
(c) Keyboard
(d) Monitor
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 37. When a .NET class is ___, it’s constructor ___.
(a) Created, defined
(b) Declared, instantiated
(c) Instantiated, executes
(d) None of the above
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 38. The ___ are the Graphical User Interface (GUI) components created for web-based interactions.
(a) Webforms
(b) Window Forms
(c) Application Forms
(d) None of the above
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 39. In Microsoft Visual Studio, ___ technology and a programming language such as C# are used to create a Web-based application.
(a) JAVA
(b) J#
(c) VB NET
(d) ASP.NET
[expand title="Show Answer"]Answer: (D)[/expand]

Q No. 40. The controls are available in the toolbox they ___ are used to create the user interface of a web-based application.
(a) Microsoft visual studio IDE
(b) Application window
(c) Webforms
(d) None of the above
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 41. WebForms consist of a ___ and a ___.
(a) Template, Component
(b) CLR, CTS
(c) HTML Forms, Web services
(d) Windows, desktop
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 42. The ___ parentheses that follow ___ indicate that no information is passed to Main ().
(a) Empty, class
(b) Empty, submain
(c) Empty, Main
(d) Empty, Namespace
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 43. ___ serve control checks that the entry matches a pattern defined by a reference expresses.
(a) Regular express validate
(b) Regular express validation
(c) Regular expensive value
(d) None of the above
[expand title="Show Answer"]Answer: (A)[/expand]

Q No. 44. Range validator uses 3 keys properties to perform its validation. These are
(a) Control to validate
(b) Minimum value
(c) Maximum value
(d) All of the above
[expand title="Show Answer"]Answer: (D)[/expand]

Q No. 45. (Control to validate – Control to compare) is expression for-
(a) Control expression
(b) Range validator
(c) Compare validator
(d) Regular exp validator
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 46. WSDL stands for-
(a) Web system data limited
(b) Web service development
(c) Web service description
(d) World system development
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 47. DISCO stands for-
(a) Dynamic in System Corporation
(b) Development in standard
(c) Document on optional discovery
(d) Document on optimum dictionary
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 48. The .NET Framework is a common environment for __, __ and running web applications and web services.
(a) Deploying, designing
(b) Creating, training
(c) Building, deploying
(d) None of the above
[expand title="Show Answer"]Answer: (C)[/expand]

Q No. 49. A web application provides a number of new security challenges such as unknown users, dynamic ___ pages, and ___.
(a) Web, sessions
(b) ASP.NET, cookies
(c) HTML, firewalls
(d) None of the above
[expand title="Show Answer"]Answer: (B)[/expand]

Q No. 50. The visual ___ projects play a key role in the ___ of the web applications files.
(a) DBC, Connections
(b) CLR, deployment
(c) InterDev, deployment
(d) None of the above
[expand title="Show Answer"]Answer: (C)[/expand]

C# Multiple Choice Questions and Answers

Conclusion

Dot net and C# are both powerful programming languages that can be used for various purposes. They are both popular among employers, so it is important to have a good understanding of them before applying for a job.

There are many online resources that can help you learn these languages, so don’t hesitate to get started today.

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