1. The reason that C# does not support multiple inheritances is because of ______.

A. Method collision

B. Name collision

C. Function collision

D. Interface collision

Correct : B. Name collision

2. _______ is a set of devices through which a user communicates with a system using interactive set of commands.

A. Console

B. System

C. Keyboard

D. Monitor

Correct : A. Console

3. Exponential formatting character (‘E’ or ‘e’) converts a given value to string in the form of _______.

A. m.dddd

B. E+xxx

C. m.dddd

D. E+xxx

Correct : A. m.dddd

4. The ______ are the Graphical User Interface (GUI) components created for web based interactions..

A. Web forms

B. Window Forms

C. Application Forms

D. None of the above

Correct : B. Window Forms

5. In Microsoft Visual Studio, ______ technology and a programming language such as C# is used to create a Web based application.

A. JAVA

B. J#

C. VB.NET

D. ASP.NET

Correct : D. ASP.NET

6. The controls available in the tool box of the ______ are used to create the user interface of a web based application.

A. Microsoft visual studio IDE

B. Application window

C. Web forms

D. None of the above

Correct : A. Microsoft visual studio IDE

7. Web Forms consists of a _ and a ___ .

A. Template, Component

B. CLR, CTS

C. HTML Forms, Web services

D. Windows, desktop

Correct : A. Template, Component

8. The __ parentheses that follow _ indicate that no information is passed to Main().

A. Empty, class

B. Empty, submain

C. Empty, Main

D. Empty, Namespace

Correct : C. Empty, Main

9. The scope of a variable depends on the ____ and _.

A. Main method, place of its declaration

B. Type of the variable, console

C. compiler, main

D. Type of the variable, place of its declaration

Correct : B. Type of the variable, console

10. Which of the following statements is correct about the C#.NET code snippet given below? class Student s1, s2; // Here 'Student' is a user-defined class. s1 = new Student(); s2 = new Student();

A. Contents of s1 and s2 will be exactly same.

B. The two objects will get created on the stack.

C. Contents of the two objects created will be exactly same.

D. The two objects will always be created in adjacent memory locations.

Correct : C. Contents of the two objects created will be exactly same.

11. Which of the following can be facilitated by the Inheritance mechanism? 1 Use the existing functionality of base class. 2 Overrride the existing functionality of base class. 3 Implement new functionality in the derived class. 4 Implement polymorphic behaviour. 5 Implement containership.

A. 1, 2, 3

B. 3, 4

C. 2, 4, 5

D. 3, 5

Correct : A. 1, 2, 3

12. Which of the following should be used to implement a 'Has a' relationship between two entities?

A. Polymorphism

B. Templates

C. Containership

D. Encapsulation

Correct : C. Containership

13. Which of the following should be used to implement a 'Like a' or a 'Kind of' relationship between two entities?

A. Polymorphism

B. Containership

C. Templates

D. Inheritance

Correct : D. Inheritance

14. How can you prevent inheritance from a class in C#.NET ?

A. Declare the class as shadows.

B. Declare the class as overloads.

C. Declare the class as seal

Correct : C. Declare the class as seal

15. A class implements two interfaces each containing three methods. The class contains no instance data. Which of the following correctly indicate the size of the object created from this class?

A. 12 bytes

B. 24 bytes

C. 0 byte

D. 8 bytes

Correct : B. 24 bytes

16. Which of the following statements is correct about Interfaces used in C#.NET?

A. All interfaces are derived from an Object class.

B. Interfaces can be inherited.

C. All interfaces are derived from an Object interface.

D. Interfaces can contain only method declaration.

Correct : B. Interfaces can be inherited.

17. Which of the following statements is correct about an interface used in C#.NET?

A. If a class implements an interface partially, then it should be an abstract class.

B. Class cannot implement an interface partially.

C. An interface can contain static methods.

D. An interface can contain static data.

Correct : A. If a class implements an interface partially, then it should be an abstract class.

18. Which of the following statements is correct about an interface?

A. One interface can be implemented in another interface.

B. An interface can be implemented by multiple classes in the same program.

C. A class that implements an interface can explicitly implement members of that interface.

D. The functions declared in an interface have a body.

Correct : C. A class that implements an interface can explicitly implement members of that interface.

19. Databases store information in records, fields and:

A. data providers

B. grids

C. columns

D. tables

Correct : D. tables

20. Each data provider class is grouped and accessible through its:

A. namespace

B. database

C. datagrid

D. provider

Correct : A. namespace

21. In Visual Studio, the tool that enables you to connect to a database and automatically populate a dataset object using a TableAdapter object is the ___________wizard:

A. Data Source Configuration

B. Data Source

C. Query Builder

D. DataSet Designer

Correct : A. Data Source Configuration

22. In XML, a document is a hierarchy of

A. attributes

B. elements

C. tags

D. All of the above

Correct : B. elements

23. Which of the following namespace contains the LINQ to XML?

A. System.Xml;

B. System.Data;

C. System.Xml.Linq;

D. System.Linq;

Correct : C. System.Xml.Linq;

24. LINQ to SQL works with

A. SQL Server

B. SQL Server Compact 3.5

C. Both (a) and (b)

D. None of the above

Correct : C. Both (a) and (b)

25. A connection string contains

A. a using directive

B. the name of the data source

C. the version number of database management system

D. the list of fields in the database

Correct : B. the name of the data source

26. To avoid writing additional SQL statements to update a live database, you instantiate an object of which class?

A. DataAdapter

B. DataReader

C. DataSet

D. CommandBuilder

Correct : A. DataAdapter

27. The following namespaces (System.Data.OleDB, System.Data.SqlClient, System.Data.Odbc, System.Data.OracleClient) include classes for different:

A. Data providers

B. File streams

C. ADO.NET applications

D. Databases

Correct : A. Data providers

28. Which of the following is a definition of a database?

A. It is a collection of related information organized on a computer.

B. It is single flat file.

C. It is a file that can only be set up on a single PC.

D. It is a group of files that can be set up only on a network.

Correct : A. It is a collection of related information organized on a computer.

29. A computer application for managing databases and pulling together data to generate reports and make decisions is known as a(n)

A. Database System (DS).

B. File Manager (FM).

C. Management System (MS).

D. Database Management System (DBMS).

Correct : D. Database Management System (DBMS).

30. Which of the following characterizes the relational model for databases?

A. It organizes data into a hierarchal format.

B. It splits data into separate row and column areas called tables.

C. It organizes data into one large table.

D. It organizes data into a network format.

Correct : B. It splits data into separate row and column areas called tables.

31. A field is a

A. group of records.

B. index that locates information in a table.

C. common characteristic in a table of information.

D. code that represents a record.

Correct : C. common characteristic in a table of information.

32. Forms and reports, used for entering and editing records, and for generating useful information in reports are

A. additional database objects.

B. only useful for complex databases.

C. difficult to generate.

D. stored separately from databases.

Correct : D. stored separately from databases.

33. A computer application that manages a database, in which different kinds of data are stored in separate tables, is known as a

A. Normal database system.

B. Network database system.

C. Standalone database system.

D. Relational database management system.

Correct : D. Relational database management system.

34. Which of the following are examples of relational database management systems?

A. Adobe Publisher and Autocad

B. Delphi and Turbo C++

C. Microsoft Excel and Microsoft Project

D. Microsoft Access and SQL 2000

Correct : D. Microsoft Access and SQL 2000

35. A unique field which distinguishs a record is known as a

A. Foreign key.

B. Primary key.

C. Tertiary key.

D. Secondary key.

Correct : D. Secondary key.

36. In a database, a parent-child relationship is also known as a

A. Many-to-one relationship.

B. Many-to-many relationship.

C. One-to-many relationship.

D. One-to-one relationship.

Correct : C. One-to-many relationship.

37. The field in the child table that links information to the parent table is known as the

A. Foreign key.

B. Primary key.

C. Tertiary key.

D. Secondary key.

Correct : A. Foreign key.

38. ADO.NET is the data access component of Microsoft’s .NET framework that enables you to

A. connect your Visual Basic.NET applications to your company’s local area network.

B. connect your Visual Basic.NET applications to databases.

C. connect your PC to the Internet.

D. connect your local area network to the Internet.

Correct : B. connect your Visual Basic.NET applications to databases.

39. ADO.NET was created for

A. Multiple users.

B. Single users.

C. Home network users.

D. Limited users.

Correct : A. Multiple users.

40. Which of the following statements characterizes the relationship between a Visual Basic.NET program and a database record?

A. They are connected.

B. External databases cannot be accessed by Visual Basic.NET.

C. They are connected as long as the program is running.

D. They are not connected.

Correct : C. They are connected as long as the program is running.

41. A copy of a database is called a

A. Duplicate database.

B. Dataset.

C. Table.

D. Database copy.

Correct : B. Dataset.

42. When is the dataset connected to the database?

A. Whenever the program makes changes to a field or record

B. They are always connected

C. They are always disconnected

D. Whenever the program is running

Correct : A. Whenever the program makes changes to a field or record

43. The connection to the database is established by

A. Using a local area network.

B. Installing a special software package.

C. Using managed providers.

D. Using a wide area network.

Correct : C. Using managed providers.

44. The ADO.NET disconnected dataset

A. Provides a flexible way of working with database records.

B. Makes working with databases very complex.

C. Requires a large amount of memory space.

D. Is required when single users want to access a database.

Correct : A. Provides a flexible way of working with database records.

45. XML provides a(n)

A. Difficult format for data storage.

B. Numeric based code for data storage.

C. Consistent format for data across applications, networks, and the Internet.

D. Limited format for data storage.

Correct : C. Consistent format for data across applications, networks, and the Internet.

46. Why does Visual Studio.NET use XML as a data storage technology?

A. XML works best for the single PC user.

B. XML restricts the number of applications that can interface with Visual Basic.NET.

C. XML is optimized for sharing data across the Internet.

D. XML is easier to understand than Visual Basic.NET.

Correct : C. XML is optimized for sharing data across the Internet.

47. Choose the correct statements about the LINQ?

A. The main concept behind the linq is query

B. linq make use of for loop to execute the query

C. It is not required that linq should make use of IEnumerable interface

D. None of the mentioned

Correct : A. The main concept behind the linq is query

48. Choose the namespace in which the interface IEnumerable is declared?

A. System.Collections

B. System.Collections.Generic

C. Both a & b

D. None of the mentioned

Correct : A. System.Collections

49. Can we use linq to query against a DataTable?

A. Yes

B. No

C. Situational

D. None of the mentioned

Correct : A. Yes

50. Select the namespace which should be included while making use of LINQ operations:

A. System.Text

B. System.Collections.Generic

C. System.Linq

D. None of the mentioned

Correct : C. System.Linq

51. What is meant by the term generics?

A. parameterized types

B. class

C. structure

D. interface

Correct : A. parameterized types

52. Are generics in C# are same as the generics in java and templates in C++?

A. Yes

B. No

C. May be

D. None of the mentioned

Correct : A. Yes

53. Choose the advantages of using generics?

A. Generics facilitate type safety

B. Generics facilitate improved performance and reduced code

C. Generics promote the usage of parameterized types

D. All of the mentioned

Correct : D. All of the mentioned

54. Which among the given classes present in System.Collection.Generic.namespace?

A. Stack

B. Tree

C. Sorted Array

D. All of the mentioned

Correct : A. Stack

55. Which feature enables to obtain information about use and capabilities of types at runtime?

A. Runtime type ID

B. Reflection

C. Attributes

D. None of the mentioned

Correct : B. Reflection

56. Choose the namespace which consists of classes that are part of .NET Reflection API:

A. System.Text

B. System.Name

C. System.Reflection

D. None of the mentioned

Correct : C. System.Reflection

Quiznetik

C# Programming | Set 2

1. The reason that C# does not support multiple inheritances is because of ______.

2. _______ is a set of devices through which a user communicates with a system using interactive set of commands.

3. Exponential formatting character (‘E’ or ‘e’) converts a given value to string in the form of _______.

4. The ______ are the Graphical User Interface (GUI) components created for web based interactions..

5. In Microsoft Visual Studio, ______ technology and a programming language such as C# is used to create a Web based application.

6. The controls available in the tool box of the ______ are used to create the user interface of a web based application.

7. Web Forms consists of a _______ and a _________ .

8. The ______ parentheses that follow _____ indicate that no information is passed to Main().

9. The scope of a variable depends on the ____________ and _________.

10. Which of the following statements is correct about the C#.NET code snippet given below? class Student s1, s2; // Here 'Student' is a user-defined class. s1 = new Student(); s2 = new Student();

11. Which of the following can be facilitated by the Inheritance mechanism? 1 Use the existing functionality of base class. 2 Overrride the existing functionality of base class. 3 Implement new functionality in the derived class. 4 Implement polymorphic behaviour. 5 Implement containership.

12. Which of the following should be used to implement a 'Has a' relationship between two entities?

13. Which of the following should be used to implement a 'Like a' or a 'Kind of' relationship between two entities?

14. How can you prevent inheritance from a class in C#.NET ?

15. A class implements two interfaces each containing three methods. The class contains no instance data. Which of the following correctly indicate the size of the object created from this class?

16. Which of the following statements is correct about Interfaces used in C#.NET?

17. Which of the following statements is correct about an interface used in C#.NET?

18. Which of the following statements is correct about an interface?

19. Databases store information in records, fields and:

20. Each data provider class is grouped and accessible through its:

21. In Visual Studio, the tool that enables you to connect to a database and automatically populate a dataset object using a TableAdapter object is the ___________wizard:

22. In XML, a document is a hierarchy of

23. Which of the following namespace contains the LINQ to XML?

24. LINQ to SQL works with

25. A connection string contains

26. To avoid writing additional SQL statements to update a live database, you instantiate an object of which class?

27. The following namespaces (System.Data.OleDB, System.Data.SqlClient, System.Data.Odbc, System.Data.OracleClient) include classes for different:

28. Which of the following is a definition of a database?

29. A computer application for managing databases and pulling together data to generate reports and make decisions is known as a(n)

30. Which of the following characterizes the relational model for databases?

31. A field is a

32. Forms and reports, used for entering and editing records, and for generating useful information in reports are

33. A computer application that manages a database, in which different kinds of data are stored in separate tables, is known as a

34. Which of the following are examples of relational database management systems?

35. A unique field which distinguishs a record is known as a

36. In a database, a parent-child relationship is also known as a

37. The field in the child table that links information to the parent table is known as the

38. ADO.NET is the data access component of Microsoft’s .NET framework that enables you to

39. ADO.NET was created for

40. Which of the following statements characterizes the relationship between a Visual Basic.NET program and a database record?

41. A copy of a database is called a

42. When is the dataset connected to the database?

43. The connection to the database is established by

44. The ADO.NET disconnected dataset

45. XML provides a(n)

46. Why does Visual Studio.NET use XML as a data storage technology?

47. Choose the correct statements about the LINQ?

48. Choose the namespace in which the interface IEnumerable is declared?

49. Can we use linq to query against a DataTable?

50. Select the namespace which should be included while making use of LINQ operations:

51. What is meant by the term generics?

52. Are generics in C# are same as the generics in java and templates in C++?

53. Choose the advantages of using generics?

54. Which among the given classes present in System.Collection.Generic.namespace?

55. Which feature enables to obtain information about use and capabilities of types at runtime?

56. Choose the namespace which consists of classes that are part of .NET Reflection API:

7. Web Forms consists of a _ and a ___ .

8. The __ parentheses that follow _ indicate that no information is passed to Main().

9. The scope of a variable depends on the ____ and _.