1. Which of the
following is the correct syntax for declaring a delegate in .NET?
A. public delegate int MyDelegate(int x);
B. delegate public int MyDelegate(int x);
C. public MyDelegate delegate int(int x);
D. delegate int MyDelegate(int x);
Answer: A. public delegate int MyDelegate(int
x);
2. What is the base
class for all exceptions in .NET?
A. Exception
B. BaseException
C. SystemException
D. RuntimeException
Answer: A. Exception
3. Which of the
following is not a value type in .NET?
A. int
B. float
C. string
D. double
Answer: C. string
4. What is the main
entry point of a .NET application?
A. Main()
B. main()
C. Start()
D. Run()
Answer: A. Main()
5. Which of the
following is true about C?
A. It is a functional programming language.
B. It is an objectoriented programming
language.
C. It is a procedural programming language.
D. It is a scripting language.
Answer: B. It is an objectoriented programming
language.
6. Which of the
following namespaces is used for file input/output operations in .NET?
A. System.IO
B. System.Text
C. System.Data
D. System.Net
Answer:
A. System.IO
7. Which of the
following methods is used to retrieve data from a database in ADO.NET?
A. ExecuteReader()
B. ReadData()
C. FetchData()
D. RetrieveData()
Answer: A. ExecuteReader()
8. Which of the
following is not a feature of .NET Core?
A. Crossplatform support
B. Unified API
C. Closedsource
D. High performance
Answer: C. Closedsource
9. Which class in
.NET is used to represent an immutable string?
A. String
B. StringBuilder
C. StringBuffer
D. ImmutableString
Answer: A. String
10. Which of the
following is used to create an instance of a class in C?
A. new
B. create
C. instantiate
D. generate
Answer: A. new
11. Which method is
used to start a thread in .NET?
A. run()
B. execute()
C. start()
D. begin()
Answer: C. start()
12. What is the
purpose of the using statement in C?
A. To define a namespace.
B. To include a library.
C. To ensure the disposal of resources.
D. To create an alias for a namespace.
Answer: C. To ensure the disposal of
resources.
13. Which of the
following types is a reference type in .NET?
A. int
B. double
C. object
D. bool
Answer: C. object
14. What does the override
keyword indicate in C?
A. The method is hiding a method in the base
class.
B. The method is implementing an interface
method.
C. The method is replacing a virtual method in
the base class.
D. The method is extending a sealed method in
the base class.
Answer: C. The method is replacing a virtual
method in the base class.
15. Which of the
following is not an access modifier in C?
A. public
B. private
C. protected
D. internal
Answer: D. internal
16. What is the
default return type of the Main method in C?
A. int
B. void
C. bool
D. string
Answer: B. void
17. Which of the
following is used to handle multiple exceptions in C?
A. catch
B. try
C. finally
D. catch with multiple parameters
Answer: A. catch
18. What is the
purpose of the sealed keyword in C?
A. To prevent a class from being instantiated.
B. To prevent a class from being inherited.
C. To prevent a method from being overridden.
D. To prevent a variable from being modified.
Answer: B. To prevent a class from being
inherited.
19. Which of the
following is a characteristic of an abstract class in C?
A. It cannot have constructors.
B. It cannot contain implemented methods.
C. It can be instantiated.
D. It cannot be instantiated.
Answer: D. It cannot be instantiated.
20. Which keyword is
used to inherit a class in C?
A. implements
B. inherits
C. extends
D. :
Answer: D. :
21. What is the
purpose of the is keyword in C?
A. To check if two objects are equal.
B. To check if an object is of a specific
type.
C. To compare two values.
D. To assign a value to a variable.
Answer: B. To check if an object is of a
specific type.
22. Which of the
following is not a .NET data provider?
A. SQL Server
B. OLE DB
C. ODBC
D. MySQL
Answer: D. MySQL
23. What is the
purpose of the yield keyword in C?
A. To return a value from a method.
B. To create an iterator block.
C. To pause the execution of a thread.
D. To declare a delegate.
Answer: B. To create an iterator block.
24. Which of the
following is not a type of JIT compiler in .NET?
A. PreJIT
B. EconoJIT
C. FullJIT
D. PartialJIT
Answer: D. PartialJIT
25. Which of the
following is used to execute a stored procedure in ADO.NET?
A. CommandType.StoredProcedure
B. CommandType.Text
C. CommandType.TableDirect
D. CommandType.StoredCommand
Answer: A. CommandType.StoredProcedure
26. Which of the
following is a valid statement for creating a readonly property in C?
A. public int MyProperty { get; }
B. public int MyProperty { get; set; }
C. public int MyProperty { set; }
D. public int MyProperty { get; private set; }
Answer: A. public int MyProperty { get; }
27. Which of the
following is true about extension methods in C?
A. They must be defined in the same class.
B. They cannot be static methods.
C. They can extend sealed classes.
D. They must be defined in a nonstatic class.
Answer: C. They can extend sealed classes.
28. What is the
purpose of the params keyword in C?
A. To pass a variable number of arguments to a
method.
B. To pass parameters by reference.
C. To pass parameters by value.
D. To pass an array as a parameter.
Answer: A. To pass a variable number of
arguments to a method.
29. Which of the
following is not a type of collection in .NET?
A. ArrayList
B. Queue
C. Stack
D. HashMap
Answer: D. HashMap
30. What is the
purpose of the readonly keyword in C?
A. To declare a constant value.
B. To create a readonly
property.
C. To declare a variable that can be assigned
only once.
D. To prevent a class from being inherited.
Answer: C. To declare a variable that can be
assigned only once.
31. Which of the
following methods is used to register a route in ASP.NET Core?
A. MapRoute()
B. RegisterRoute()
C. AddRoute()
D. CreateRoute()
Answer: A. MapRoute()
32. Which of the
following is not a lifecycle event in ASP.NET?
A. Init
B. Load
C. Render
D. Dispose
Answer: D. Dispose
33. What is the
purpose of the ViewState in ASP.NET?
A. To manage state across multiple requests.
B. To maintain the state of controls between
postbacks.
C. To store data on the client side.
D. To manage authentication state.
Answer: B. To maintain the state of controls
between postbacks.
34. Which of the
following is not a .NET Framework class library?
A. System
B. System.Collections
C. System.Threading
D. System.GarbageCollection
Answer: D. System.GarbageCollection
35. What is the
purpose of the HttpContext class in ASP.NET?
A. To manage HTTP response.
B. To manage HTTP request.
C. To store information about the current HTTP
request and response.
D. To handle HTTP errors.
Answer: C. To store information about the
current HTTP request and response.
36. Which of the
following is not an ASP.NET control?
A. Label
B. Button
C. Table
D. Text
Answer: D. Text
37. What is the
purpose of the Global.asax file in ASP.NET?
A. To define applicationlevel events.
B. To manage session state.
C. To configure routing.
D. To define pagelevel events.
Answer: A. To define applicationlevel events.
38. Which of the
following is not a data binding technique in ASP.NET?
A. Simple Data Binding
B. Complex Data Binding
C. Automatic Data Binding
D. Declarative Data Binding
Answer: C. Automatic Data Binding
39. What is the
purpose of the Web.config file in ASP.NET?
A. To store application settings and
configuration data.
B. To manage user authentication.
C. To define applicationlevel events.
D. To manage session state.
Answer: A. To store application settings and
configuration data.
40. Which of the
following is not a valid state management technique in ASP.NET?
A. Session State
B. Application State
C. View State
D. Global State
Answer: D. Global State
41. Which of the
following is used to handle errors in ASP.NET?
A. trycatch block
B. HandleError attribute
C. Error event in Global.asax
D. All of the above
Answer: D. All of the above
42. Which of the
following is not a builtin data type in C?
A. decimal
B. int
C. char
D. str
Answer: D. str
43. What is the
purpose of the LINQ in .NET?
A. To perform database operations.
B. To perform query operations on collections.
C. To handle exceptions.
D. To manage memory.
Answer: B. To perform query operations on
collections.
44. Which of the
following is not a valid method for querying data using LINQ?
A. Where()
B. Select()
C. OrderBy()
D. Fetch()
Answer: D. Fetch()
45. What is the
purpose of the async keyword in C?
A. To create a new thread.
B. To define an asynchronous method.
C. To perform asynchronous operations.
D. To handle exceptions asynchronously.
Answer: B. To define an asynchronous method.
46. Which of the
following is used to convert a value type to a reference type in C?
A. Casting
B. Type Conversion
C. Boxing
D. Unboxing
Answer: C. Boxing
47. Which of the
following is true about the readonly keyword in C?
A. It can be used for variables that can be
changed only within the class.
B. It can be used for variables that can be
changed only once.
C. It can be used for variables that cannot be
changed.
D. It can be used for methods that cannot be
overridden.
Answer: B. It can be used for variables that
can be changed only once.
48. What is the
purpose of the Task class in .NET?
A. To manage background tasks.
B. To represent an asynchronous operation.
C. To perform threading operations.
D. To manage memory.
Answer: B. To represent an asynchronous
operation.
49. Which of the
following is used to declare a nullable type in C?
A. Nullable<int>
B. int?
C. nullable int
D. nullable<int>
Answer: B. int?
50. Which of the
following is true about the base keyword in C?
A. It is used to call the base class
constructor.
B. It is used to call a base class method.
C. It is used to access a base class field.
D. All of the above
Answer: D. All of the above
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