php mcq questions with answers


                                
Which of the following is absolutely neccessary to use a class Point present in namespace Graph stored in library?
                                
A.Use fully qualified name of the Point class.
B.Use using statement before using the Point class.
C.Add Reference of the library before using the Point class.
D.Use using statement before using the Point class.
E.Copy the library into the current project directory before using the Point class.
                              
Click To Show Ans:C

                        
                                


Which of the followings are NOT a .NET namespace?



    

  1. 
System.Web

    2. 

  2. 
System.Process

    3. 

  3. 
System.Data

    4. 

  4. 
System.Drawing2D

    5. 

  5. 
System.Drawing3D

    6. 





                                
A.1, 3
B.2, 4, 5
C.3, 5
D.1, 2, 3
                              
Click To Show Ans:B

                        
                                
Which of the following statements is correct about namespaces in C#.NET?
                                
A.Namespaces can be nested only up to level 5.
B.A namespace cannot be nested.
C.There is no limit on the number of levels while nesting namespaces.
D.If namespaces are nested, then it is necessary to use using statement while using the elements of the inner namespace.
E.Nesting of namespaces is permitted, provided all the inner namespaces are declared in the same file.
                              
Click To Show Ans:C

                        
                                


Which of the following is correct way to rewrite the C#.NET code snippet given below?



using Microsoft.VisualBasic;
using System.Windows.Forms;
MessageBox.Show("Wait for a" + ControlChars.CrLf + "miracle");




                                
A.using System.Windows.Forms;
using CtrlChars = Microsoft.VisualBasic.ControlChars; 
MessageBox.Show("Wait for a" + CrLf + "miracle");
B.using Microsoft.VisualBasic; 
using System.Windows.Forms; 
CtrlChars = ControlChars;
MessageBox.Show("Wait for a" + CtrlChars.CrLf + "miracle");
C.using Microsoft.VisualBasic; 
using System.Windows.Forms; 
CtrlChars = ControlChars; 
MessageBox.Show ("Wait for a" + CrLf + "miracle");
D.using System.Windows.Forms;
using CtrlChars = Microsoft.VisualBasic.ControlChars; 
MessageBox.Show("Wait for a" + CtrlChars.CrLf + "miracle");
                              
Click To Show Ans:D

                        
                                
Which of the following statements is correct about the using statement used in C#.NET?
                                
A.
using statement can be placed anywhere in the C#.NET source code file.
B.It is permitted to define a member at namespace level as a using alias.
C.A C#.NET source code file can contain any number of using statement.
D.By using using statement it is possible to create an alias for the namespace but not for the namespace element.
E.By using using statement it is possible to create an alias for the namespace element but not for the namespace.
                              
Click To Show Ans:C