C#
MCQ questions and answers
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C# MCQ (62)
| 1. | ______ is the most important component of .NET framework. |
| A | CLS |
| B | CLR |
| C | CTS |
| D | WPF |
|
Answer: B |
|
| 2. | Which component of framework is use to manage the memory and exception handling in .NET? |
| A | BCL |
| B | MFC |
| C | CLR |
| D | CTS |
|
Answer: C |
|
| 3. | Which code is executed by the CLR? |
| A | Source code |
| B | Binary code |
| C | Managed code |
| D | Unmanaged code |
|
Answer: C |
|
| 4. | JIT compiler translate the MSIL code into ____________. |
| A | Binary code |
| B | Native code |
| C | Source code |
| D | Assembly code |
|
Answer: B |
|
| 5. | .net framework compiler convert the source code into____________. |
| A | Native code |
| B | Binary code |
| C | Byte code |
| D | MSIL |
|
Answer: D |
|
| 6. | Which namespace is the root namespace in the .NET framework? |
| A | System |
| B | System.Object |
| C | System.Data |
| D | System.IO.Stream |
|
Answer: A |
|
| 7. | ____________ consists of a set of basic language features which are required by the many applications to communicate with other objects irrespective of the language they ware implemented in . |
| A | CTS |
| B | CLS |
| C | CLR |
| D | FCL |
|
Answer: B |
|
| 8. | ____________ specifies certain guideline for declaring and managing type at the runtime in .NET. |
| A | CTS |
| B | BCL |
| C | FCL |
| D | CLR |
|
Answer: A |
|
| 9. | What is the base class of all the data types? |
| A | System |
| B | System.Data |
| C | System.Object |
| D | System.IO |
|
Answer: C |
|
| 10. | ____________ is the central place for the registering assemblies so that different applications on the computer can use it later on. |
| A | Registry |
| B | Global Assembly Cache(GAC) |
| C | PE |
| D | Assembly |
|
Answer: B |
|
| 11. | Which database technology is used to work with data and databases of all type? |
| A | ADODB |
| B | DAO |
| C | ADO.NET |
| D | ADODC |
|
Answer: C |
|
| 12. | ____________ based applications are inter operable with any processes which communicate through the Simple Object Access Protocol (SOAP) message. |
| A | WPF |
| B | WCF |
| C | WF |
| D | XML |
|
Answer: B |
|
| 13. | ____________is a client software provided by the microsoft company which simplifies and improves the safety of accessing resources and help in sharing the personal information on the internet. |
| A | Windows CardSpace (WCS) |
| B | Windows Communication Foundation |
| C | Windows Presenatation Foundation |
| D | Windows workflow Foundation |
|
Answer: A |
|
| 14. | The____________ keyword is use to determines the other source files of the class, interface, struct, or method can be define in the namespace. |
| A | class |
| B | partial |
| C | public |
| D | none |
|
Answer: B |
|
| 15. | _________ reference type is use to store the reference instead of data. |
| A | stack |
| B | heap |
| C | RAM |
| D | cache |
|
Answer: B |
|
| 16. | A ____________ is almost equivalent to the function pointer in the C or C++. |
| A | delegate |
| B | object Type |
| C | literals |
| D | none |
|
Answer: A |
|
| 17. | MSDN stands for |
| A | Microsoft Development Network. |
| B | Microsoft Developer Network. |
| C | Main Developer Network. |
| D | Microsoft Deployment Network. |
|
Answer: B |
|
| 18. | Which keyword is use to initialise with an anonymous data type? |
| A | class |
| B | var |
| C | public |
| D | int |
|
Answer: B |
|
| 19. | Which reference type is the base type for value and reference and has no literal representation? |
| A | Object |
| B | String |
| C | int |
| D | Double |
|
Answer: A |
|
| 20. | Which reference type is use to store the Unicode character in the .NET? |
| A | char |
| B | string |
| C | object |
| D | Array |
|
Answer: B |
|
| 21. | ____________ type is a special form of class which is having the property of value type. |
| A | Array |
| B | Pointer |
| C | Struct |
| D | Class |
|
Answer: C |
|
| 22. | What is the range of byte data type? |
| A | 0 to 256 |
| B | 0 to 255 |
| C | 0 to 127 |
| D | 0 to 512 |
|
Answer: B |
|
| 23. | What is the size of unsigned integer type? |
| A | 16 bit |
| B | 8 bit |
| C | 32 bit |
| D | 64 bit |
|
Answer: A |
|
| 24. | What is the default value of float? |
| A | 0.00 |
| B | 0.0F |
| C | 0.0 |
| D | 0.001 |
|
Answer: B |
|
| 25. | Which keyword is used to define an unsafe context where you are free to use pointer? |
| A | safe |
| B | * pointer |
| C | unsafe |
| D | delegates |
|
Answer: C |
|
| 26. | Reference type is stored in____________. |
| A | stack |
| B | RAM |
| C | heap |
| D | secondary memory |
|
Answer: C |
|
| 27. | Which operator is a mostly used with the Nullable and reference type? |
| A | ?? |
| B | 😕 |
| C | |
| D | == |
|
Answer: A |
|
| 28. | Which function is use to convert alphanumeric string into float or integer? |
| A | atof() |
| B | atoi() |
| C | parse() |
| D | both A and B |
|
Answer: D |
|
| 29. | ____ operator is use to check compatibility of an object with the given type and it returns a boolean value? |
| A | is |
| B | as |
| C | = |
| D | none |
|
Answer: A |
|
| 30. | Which keyword is used to alter the flow of switch statement? |
| A | default |
| B | break |
| C | case |
| D | none |
|
Answer: B |
|
| 31. | ____________ continue to execution of the loop for each element of an array or an object collection. |
| A | for |
| B | while |
| C | foreach |
| D | do……..while |
|
Answer: C |
|
| 32. | ____________ occurs if the base class exception are thrown by the runtime. |
| A | FormatException |
| B | CoreException |
| C | NullReferenceException |
| D | NotSupportedException |
|
Answer: B |
|
| 33. | Which exception class is a used for base class for other exception? |
| A | SystemException |
| B | AccessException |
| C | CoreException |
| D | ArithmaticException |
|
Answer: A |
|
| 34. | Which keyword is used to check the memory overflow exceptions? |
| A | Checked |
| B | Unchecked |
| C | Both A and B |
| D | Exception |
|
Answer: C |
|
| 35. | ____________ is a wrapper around the one or more structural elements which make them unique. |
| A | Class |
| B | Struct |
| C | Encapsulation |
| D | Namespace |
|
Answer: D |
|
| 36. | ___ namespace is contain the classes and interfaces which return an information about types, methods, fields and it also has the ability to dynamically create and invoke the data type? |
| A | System.net |
| B | System.reflection |
| C | System.Data |
| D | System |
|
Answer: B |
|
| 37. | The ADO.NET classes can be found in ______ |
| A | System.Data |
| B | System.net |
| C | System.IO |
| D | System.web |
|
Answer: A |
|
| 38. | ____________ namespace include classes that support to the windows socket interface. |
| A | System.IO |
| B | System.net |
| C | System.net.socket |
| D | System.data |
|
Answer: C |
|
| 39. | System.Drawing namespace provides an access to the____________ functionality. |
| A | Text |
| B | Window |
| C | Printing |
| D | GDI+ Graphics |
|
Answer: D |
|
| 40. | ODBC stands for? |
| A | Object Database Connectivity |
| B | Open Data Connectivity |
| C | Open Database Connectivity |
| D | Open Data Connection |
|
Answer: C |
|
| 41. | ____________ include the classes which is use to define a culture related information. |
| A | System |
| B | System.Data |
| C | System.Globalization |
| D | System.Reflection |
|
Answer: C |
|
| 42. | Which keyword is used to hide the important detail in the program? |
| A | abstract |
| B | partial |
| C | interface |
| D | class |
|
Answer: A |
|
| 43. | Which is known as the default parameter? |
| A | value |
| B | output |
| C | reference |
| D | none |
|
Answer: A |
|
| 44. | Output parameter is declared with ____________ modifer |
| A | In |
| B | Ref |
| C | Out |
| D | As |
|
Answer: C |
|
| 45. | Which parameter does not create new memory storage location? |
| A | value |
| B | output |
| C | reference |
| D | B and C |
|
Answer: D |
|
| 46. | _______ access modifier gives the access to member of a class without any restrictions? |
| A | internal |
| B | external |
| C | public |
| D | proctected |
|
Answer: C |
|
| 47. | A parametric array is an array of parameter and it is declared by using ____________ modifiers? |
| A | Array |
| B | In |
| C | Ref |
| D | Param |
|
Answer: D |
|
| 48. | ____________ is called when the object is finally destroyed. |
| A | constructor |
| B | destructor |
| C | delete() |
| D | none |
|
Answer: B |
|
| 49. | _____ keyword is associated with the classes which is accessible at compile time? |
| A | const |
| B | final |
| C | readonly |
| D | none |
|
Answer: A |
|
| 50. | Static member is belong to ____________. |
| A | class |
| B | object |
| C | function |
| D | datafield |
|
Answer: A |
|
| 51. | The ____________ class and its members enable you to access the data and member function of the class without creating an instance of the class. |
| A | partial |
| B | non-static |
| C | static |
| D | public |
|
Answer: C |
|
| 52. | ____________ allow you to use the class as an array and enable an object to access the members of a class using an index notation. |
| A | get |
| B | set |
| C | indexes |
| D | enum |
|
Answer: C |
|
| 53. | Which keyword is used to declared a class that can not be inherited? |
| A | const |
| B | readOnly |
| C | final |
| D | sealed |
|
Answer: D |
|
| 54. | Which operator cannot be overload? |
| A | && |
| B | sizeof |
| C | -> |
| D | B & C |
|
Answer: D |
|
| 55. | Which keyword is use to indicate that class can not be instantiated? |
| A | interface |
| B | abstract |
| C | Both A and B |
| D | sealed |
|
Answer: B |
|
| 56. | ______ feature provide an alternative to the multiple inheritance? |
| A | abstract |
| B | class |
| C | interface |
| D | struct |
|
Answer: C |
|
| 57. | Which OOPS feature is use to promotes the re-usability of code? |
| A | Polymorphism |
| B | Ineritance |
| C | Dynamic binding |
| D | Encapsulation |
|
Answer: B |
|
| 58. | Which operator is called as de-reference operator? |
| A | * (Asterik) |
| B | & (Ampersent) |
| C | == (Double equal) |
| D | ! (Exclamation) |
|
Answer: A |
|
| 59. | The pointers can access a member of the structure by using ____________ operator. |
| A | ::(Scope resolution) |
| B | * (Asterik) |
| C | .(period) |
| D | -> (arrow operator) |
|
Answer: D |
|
| 60. | Which is a default server root folder of IIS server? |
| A | wwwroot |
| B | root |
| C | public_html |
| D | www |
|
Answer: A |
|
| 61. | What is an extension of a resource file? |
| A | .resx |
| B | .resources |
| C | A and B |
| D | .res |
|
Answer: C |
|
| 62. | Which folder is used to stores the resources which are accessible to a particular web page in an ASP.NET web application? |
| A | App_LocalResources |
| B | App_webReference |
| C | App_GlobalResources |
| D | App_Data |
| Answer: A |
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