Advanced-Java-MCQ's.pdf

Index of MCQ’s Unit - I Chapter 1 : Abstract Windowing Toolkit (AWT)............................................................................

Index of MCQ’s Unit - I Chapter 1 : Abstract Windowing Toolkit (AWT)...................................................................................... M1-1 to M1-5 Unit - II Chapter 2 : Swings..................................................................................................................................... M2-1 to M2-2 Unit - III Chapter 3 : Event Handling........................................................................................................................ M3-1 to M3-3 Unit - IV Chapter 4 : Networking Basics.................................................................................................................. M4-1 to M4-3 Unit - V Chapter 5 : Interacting with Database....................................................................................................... M5-1 to M5-3  Unit - VI Chapter 6 : Servlets................................................................................................................................... M6-1 to M6-3   1 Abstract Windowing Toolkit (AWT) Unit I Multiple Choice Questions for Online Exam Q. 1 Give the abbreviation of AWT ? Q. 8 How many types of controls does AWT supports (a) Applet Windowing Toolkit these controls are subclasses of component? (b) Abstract Windowing Toolkit (a) 7 (b) 6 (c) Absolute Windowing Toolkit (c) 5 (d) 8 (d) None of the above Q. 9 Which are passive controls that do not support any Q. 2 Which is the container that contain title bar and interaction with the user? can have MenuBars. It can have other components (a) Choice (b) List like button, textfield etc.? (c) Labels (d) Checkbox (a) Panel (b) Frame Q. 10 By which method You can set or change the text in (c) Window (d) Container a Label ? Q. 3 Which is a component in AWT that can contain (a) setText() (b) getText() another components like buttons, textfields, labels (c) Both A & B (d) None of the above etc.? Q. 11 Which class is used to create a pop‐up list of items (a) Window (b) Container from which the user may choose? (c) Panel (d) Frame (a) List (b) Choice Q. 4 AWT is used for GUI programming in java? (c) Labels (d) Checkbox (a) True Q. 12 Which object can be constructed to show any (b) False number of choices in the visible window? Q. 5 Which class provides many methods for graphics (a) Labels (b) Choice programming? (c) List (d) Checkbox (a) java.awt Q. 13 Which is used to store data and partial results, as (b) java.Graphics well as to perform dynamic linking, return values (c) java.awt.Graphics for methods, and dispatch exceptions? (d) None of the above (a) Window (b) Panel Q. 6 These two ways are used to create a Frame (c) Frame (d) Container By creating the object of Frame class (association) Q. 14 The following way is used to create a frame is by By extending Frame class (inheritance) creating the object of Frame class? (a) True (a) inheritance (b) False (b) association Q. 7 Which is the container that doesn't contain title (c) Both A & B bar and MenuBars. It can have other components (d) None of the above like button, textfield etc? Q. 15 AWT more powerful components like tables, lists, (a) Window scroll panes, color chooser, tabbed pane etc.? (b) Frame (a) True (b) False (c) Panel (d) Container  Advanced Java Programming (MSBTE) M1-2 MCQ - Abstract Windowing Toolkit (AWT) Q. 16 These four methods commonly used in? Q. 22 What is API? (i) public void add(Component c) (a) Application Programming Interchange (ii) public void setSize(int width,int height) (b) Application Programming Interaction (iii) public void setLayout(LayoutManager m) (c) Application Programming Interface (iv) public void setVisible(boolean) (d) None of these (a) Graphics class Q. 23 What is default layout for Dialog? (b) Component class (a) FlowLayout (b) GridLayout (c) Both A & B (c) CardLayout (d) BorderLayout (d) None of the above Q. 24 Which method is used to count the number of Q. 17 In Graphics class which method is used to draws a items is the List. rectangle with the specified width and height? (a) getItem( ) (b) getSelectedItem( ) (a) public void drawRect(int x, int y, int width, int (c) getItemCount( ) (d) getCount( ) height) Q. 25 The correct hierarchy for Panel is __________ (b) public abstract void fillRect(int x, int y, int (a) Component – Container – Window – Panel width, int height) (b) Component – Container – Applet – Panel (c) public abstract void drawLine(int x1, int y1, int (c) Component – Container – Panel x2, int y2) (d) Container – Component – Panel (d) public abstract void drawOval(int x, int y, int Q. 26 Which is the correct constructor of GridLayout. width, int height) (a) GridLayout(int a) Q. 18 Implement the Listener interface and overrides its (b) GridLayout(int num_rows, int num_columns) methods is required to perform in event handling? (c) GridLayout(int rows, int cols, int vert) (a) True (b) False (d) GridLayout(int hor) Q. 19 Public class MenuBar extends ____________. Q. 27 What are the types of DialogBox? (a) MenuComponent (a) Modal DialogBox (b) MenuContainer (b) Modal and Modeless DialogBox (c) ComponentMenu (c) Modam (d) MenuBar (d) None of the above Q. 20 Which of the following is true about AWT and Q. 28 In the give constructor what third parameter Swing components. indicates : ScrollBar s = new ScrollBar(0,10,20,0,1000); (a) AWT components creates a process where as swing components creates a thread (a) size of thumb (b) minimum value (b) AWT components creates a thread where as swing components creates a process (c) Increment value (c) Both AWT and Swing components creates a (d) Initial Value process Q. 29 Which class is used to represent a single line (d) Both AWT and swing components creates a textbox with password character facility? thread (a) TextField (b) TextArea (c) Label (d) Checkbox Q. 21 Panel is defined as ______________. (a) The Panel class is a concrete subclass of Q. 30 To set the title to the Frame window ________ Container. method is used. (b) A Panel is a window that does not contain (a) void setTitle(String str) titlebar, menubar and border. (b) void setText(String str) (c) Panel is a superclass of Applet. (c) void settitle(String str) (d) All of the above. (d) None of the above  Advanced Java Programming (MSBTE) M1-3 MCQ - Abstract Windowing Toolkit (AWT) Q. 31 Suppose a Panel is added to a Frame and a Button Q. 39 Which method is used to set password character is added to the Panel. If the Frame’s font is set to for a TextField? 12 point Times New Roman, the panel’s font is set (a) setPasswordCharacter( ) 10 points Times New Roman and the Button’s font (b) setEchoChar( ) is not set. What font will be used to display the (c) setPassChar( ) Button’s label? (d) setEchoCharacter( ) (a) 12 point Times New Roman (b) 11 point Times New Roman Q. 40 The getContentPane( ) method is of which class? (c) 10 point Times New Roman (a) JApplet (d) 9 point Times New Roman (b) JFrame (c) JButton Q. 32 Which of the following is true about FlowLayout? (d) None of these (a) FlowLayout can use multiple rows if the horizontal space in the container is too small Q. 41 Which class defines setSize( ) method? to hold the component. (a) Frame (b) FlowLayout is the default layout manager of (b) Applet panel and applet. (c) Component (c) It is the default layout manager for window. (d) Panel (d) Both A & B. Q. 42 __________ is a swing class that allows to enter a Q. 33 Which of the method can be used to output a single line of text. String in an Applet? (a) TextField (a) display( ) (b) print( ) (b) JTextField (c) drawString( ) (d) transient( ) (c) EditTextField Q. 34 ___________ positions are the components into 5 (d) TextArea regions east, west, south, north, center. Q. 43 Which Text Component method is used to set a (a) CardLayout (b) BorderLayout TextComponent to the read‐only state? (c) GridLayout (d) FlowLayout (a) Editable Q. 35 What is API? (b) NonEditable (a) Application Programming Interchange (c) setEchoChar (b) Application Programming Interaction (d) setEditable (c) Application Programming Interface Q. 44 How would you set the color of graphics context (d) None of these called g to cyan? Q. 36 Panel is defined as _______. (a) g.setColor(“cyan”); (a) Panel class is a concrete sub‐class of container (b) g.setCurrentColor(cyan); (b) A Panel is a window that does not contain a (c) g.setColor(“Color.cyan”); title bar, menu bar or border (d) g.setColor(Color.cyan); (c) Panel is the superclass of Applet Q. 45 What is use of second parameter in given (d) All of above constructor Lable(String,int) Q. 37 Which component of AWT provides compact, (a) specifies height of label multichoice, scrolling component? (b) specifies width of label in terms of pixel (a) List (b) Choice (c) specifies the alignment of text in label in (c) Panel (d) TextArea terms of pixel (d) specifies width of label Q. 38 When there is a switching condition like ON or OFF, which control is used of following? Q. 46 The setBackground() method is part of which of (a) Button (b) RadioButton the following class java.awt package? (c) ToggleButton (d) TextField (a) Component (b) Applet (c) Object (d) Graphics  Advanced Java Programming (MSBTE) M1-4 MCQ - Abstract Windowing Toolkit (AWT) Q. 47 What does the following line of code do? Q. 56 Which of the following package is used for TextField tf = new TextField(10); Graphical User Interface? (a) will set 10 to TextField as its initial text. (a) java.applet (b) java.awt (b) Will set the character capacity to 10 (c) java.awt.image (d) java.io (c) Both A & B Q. 57 What are the variables defined in Dimension? (d) None of These (a) length and width Q. 48 Frame is a standard window, which is __________ (b) height and length of Window class from AWT hierarchy? (c) height and width (a) Derived class / Subclass (d) None of these (b) Base class / Super class Q. 58 Which AWT component is not editable? (c) Root class (a) Button (b) TextField (d) Family class (c) FlowLayout (d) Label Q. 49 A ____________ is a passive AWT control that do Q. 59 Current text of Label can be obtained using not generate any event? __________. (a) Button (b) RadioButton (a) setAlignment( ) (c) Choice (d) Label (b) getAlignment( ) Q. 50 The default layout manager of Frame is________. (c) getText( ) (a) FlowLayout (b) BorderLayout (d) setText( ) (c) GridLayout (d) CardLayout Q. 60 The method ___________ places a Menu m into Q. 51 Which method is used to check the status of the MenuBar mb. checkbox? (a) mb.addMenuItem(m) (a) getStatus( ) (b) getState( ) (b) mb.addItem(m) (c) isChecked( ) (d) getChecked( ) (c) mb.add(m) Q. 52 Which of the following method is used to set a (d) None of these TextComponent to read‐only mode? Q. 61 Which of these Components cannot be added to (a) Editable( ) (b) nonEditable( ) Frame? (c) setEchoChar( ) (d) setEditable( ) (a) Label Q. 53 _________ generates action events when an item (b) Button is double‐clicked. (c) CheckboxGroup (a) List (b) Checkbox (d) All of above (c) MenuItem (d) TextField Q. 62 What is use of second parameter given in Label Q. 54 Which of the following does not have its default constructor : Label(String, int) layout as BorderLayout. (a) Specifies height of label in terms of pixels. (a) Frame (b) specifies width of label in terms of pixels. (b) Dialog (c) specifies the alignment of text in label in (c) JApplet terms of pixels. (d) All of Above (d) Specifies maximum numbers of characters in label. Q. 55 Which of the following statement about GUI component is wrong? Q. 63 Which of these classes can be added to any Container class, using the add method defined in (a) swing exists since the version 1.2 of the JDK Container class? (b) AWT stands for Abstract Window Toolkit (a) Button (c) You cannot place AWT component on swing (b) CheckboxMenuItem container. (c) Menu (d) The AWT classes are deprecated. (d) MenuBar  Advanced Java Programming (MSBTE) M1-5 MCQ - Abstract Windowing Toolkit (AWT) Q. 64 What is the use of setEchoChar( ) method? (a) Only A statement is true. (a) to set echo in symbol form (b) Only B statement is true. (b) to set char in symbol form (c) Only C statement is true. (c) Both A & B (d) All A,B and C are true. (d) to create password in symbol form Q. 67 The default layout of Applet is _______. Q. 65 __________ method returns currently selected (a) GridLayout item in choice. (b) CardLayout (a) getSelectedItem( ) (c) FlowLayout (b) getSelectedElement( ) (d) BorderLayout (c) getSelectedIndex( ) Q. 68 Java Applets are used to create ________ (d) getItem( ) applications. Q. 66 Which statement with respect to inner class is (a) Graphical true. (b) user interactive A. It is a way of logically grouping classes that are (c) Both A & B only used in one place. (d) None of these B. It increases encapsulation. C. It can lead to more readable and maintainable code. Answers Q.1 (b) Q.2 (b) Q.3 (b) Q.4 (a) Q.5 (c) Q.6 (a) Q.7 (c) Q.8 (a) Q.9 (c) Q.10 (a) Q.11 (b) Q.12 (c) Q.13 (c) Q.14 (b) Q.15 (a) Q.16 (b) Q.17 (b) Q.18 (a) Q.19 (a) Q.20 (c) Q.21 (d) Q.22 (c) Q.23 (a) Q.24 (c) Q.25 (c) Q.26 (b) Q.27 (b) Q.28 (a) Q.29 (a) Q.30 (a) Q.31 (c) Q.32 (d) Q.33 (c) Q.34 (b) Q.35 (c) Q.36 (d) Q.37 (a) Q.38 (c) Q.39 (b) Q.40 (d) Q.41 (c) Q.42 (b) Q.43 (d) Q.44 (d) Q.45 (c) Q.46 (a) Q.47 (b) Q.48 (a) Q.49 (d) Q.50 (c) Q.51 (b) Q.52 (d) Q.53 (c) Q.54 (d) Q.55 (c) Q.56 (b) Q.57 (c) Q.58 (b) Q.59 (c) Q.60 (c) Q.61 (c) Q.62 (c) Q.63 (a) Q.64 (c) Q.65 (a) Q.66 (d) Q.67 (c) Q.68 (c)  2 Swings Unit II Multiple Choice Questions for Online Exam Q. 8 Which package is used for imporing swing Q. 1 The following specifies the advantages of components? It is lightweight. (a) java.swing (b) javax.swing It supports pluggable look and feel. (c) java.awt. (d) All of the above It follows MVC (Model View Controller) architecture. Q. 9 In swing, Buttons are subclasses of which class? (a) Swing (b) AWT (a) AbstractButton (b) JButton (c) Both A & B (d) None of the above (c) Button (d) JRadioButton Q. 2 Swing is not a part of JFC (Java Foundation Classes) Q. 10 JTree class belongs to which package? that is used to create GUI application? (a) java.awt (b) java.applet (a) True (b) False (c) java.swing (d) javax.swing Q. 3 The Swing Component classes that are used in Q. 11 Which component is swing represents data in row Encapsulates a mutually exclusive set of buttons? and columns? (a) AbstractButton (b) ButtonGroup (a) JTextArea (b) JTable (c) JButton (d) ImageIcon (c) JPanel (d) JtabbedPane Q. 4 The Java Foundation Classes (JF(c) is a set of GUI Q. 12 Which of the following is not constructor of JTree? components which simplify the development of (a) JTree(TreeNode tn) desktop applications? (b) JTree(Vector v) (a) True (b) False (c) JTree(int x) Q. 5 Which package is used for import the swing (d) none of the above components? Q. 13 ____________class used to create node in tree. (a) java.swing (b) java.awt (a) TreeNode (c) javax.swing (d) All of the above (b) DefaultMutableNode Q. 6 The String parameter to JButton constructor (c) DefaultMutableTreeNode ______________. (d) Node (a) tell which region to put the JButton in. Q. 14 JTabbedPane class is present in which package? (b) tells the color of the JButton. (a) java.awt (b) java.swing (c) tells what text will appear on JButton. (c) java.awt.swing (d) javax.swing (d) tells what should happen when JButton is pressed. Q. 15 What is purpose of JTree? (a) To show data in form of parent and child Q. 7 MVC architecture is _________ nodes. (a) Modelling – Visual – Controller (b) To show data in list view. (b) Model – View – Controller (c) To show data in tabular form. (c) Model – Viewable – Controller (d) To show data in menu‐bar. (d) Many – View – Controller  Advanced Java Programming (MSBTE) M2-2 MCQ - Swings Q. 16 What is the use of : Container getContentPane( ) Q. 19 From following list which is not Swing class? (a) Returns Container for a JDialog. (a) JLabel (b) Returns a ContentPane for Menu (b) JButton (c) Returns a ContentPane for Applet (c) JImageIcon (d) None of the above (d) JCheckBox Q. 17 Which of the following method is not applicable Q. 20 Which component provides support for two‐state for Button in swing. buttons? (a) setDiableIcon( ) (b) setPressedIcon( ) (a) Button, Checkbox (c) setSelectedIcon( ) (d) setRollOverIcon( ) (b) JCheckBox,JRadioButton Q. 18 Which of the following method is used to retrieve (c) Button, MenuItem icon of JButton? (d) JCheckBox, TextField (a) Icon getIcon( ) (b) ImageIcon getImageIcon( ) (c) ImageIcon getIcon( ) (d) ImageIcon GetImageIcon( ) Answers Q.1 (a) Q.2 (b) Q.3 (b) Q.4 (a) Q.5 (c) Q.6 (c) Q.7 (b) Q.8 (b) Q.9 (a) Q.10 (d) Q.11 (b) Q.12 (c) Q.13 (c) Q.14 (d) Q.15 (a) Q.16 (c) Q.17 (c) Q.18 (c) Q.19 (c) Q.20 (b)  3 Event Handling Unit III Multiple Choice Questions for Online Exam Q. 1 The Following steps are required to perform Q. 8 In Graphics class Which method is used to set the Implement the Listener interface and overrides its graphics current color to the specified color? methods (a) public abstract void setFont(Font font) Register the component with the Listener (b) public abstract void setColor(Color c) (a) Exception Handling (b) String Handling (c) public abstract void drawString(String str, int (c) Event Handling (d) None of the above x, int y) Q. 2 In which places can put the event handling code (d) None of the above (a) Same class (b) Other class Q. 9 Which of the following method is used to (c) Annonymous class (d) All mentioned above determine the type of adjustment event? Q. 3 Which package provides many event classes and (a) getType( ) Listener interfaces for event handling? (b) getEventType( ) (a) java.awt (b) java.awt.Graphics (c) getAdjustmentType( ) (c) java.awt.event (d) None of the above (d) getEventObjectType( ) Q. 4 To use the ActionListener interface it must be Q. 10 TextField generates ____________ event. implemented by a class there are several ways to (a) ActionEvent,ItemEvent do that find in the following? (b) ActionEvent, TextEvent (a) Creating a new class (c) ScrollEvent,TextEvent (b) using the class the graphical component (d) ActionEvent, ScrollEvent (c) an anonymous inner class Q. 11 void keyTyped(KeyEvent ke) called when a key on (d) All mentioned above the keyboard is ____________. Q. 5 The ActionListener interface is not used for (a) pressed and then released. handling action events? (b) pressed (a) True (c) released (b) False (d) none of the above Q. 6 The ActionListener interface is used for handling Q. 12 Which event is generated when the position of action events, For example, it's used by a scrollbar is changed? (a) JButton (a) KeyEvent (b) MouseEvent (b) JCheckbox (c) ItemEvent (d) AdjustmentEvent (c) All of these Q. 13 The signature for the registration method for a (d) JMenuItem ActionEvent should be _______. Q. 7 Which class is used for this Processing Method (a) public void addActionListener(ActionEvent L) processActionEvent( )? (b) public void setAction(ActionListener L) (a) Button,List,MenuItem (c) public void setActionListener(ActionListener L) (b) Button,Checkbox,Choice (d) public void addActionListener(ActionListener (c) Scrollbar,Component,Button L) (d) None of the above  Advanced Java Programming (MSBTE) M3-2 MCQ - Event Handling Q. 14 Which of the following component generates Q. 24 ComponentEvent is the superclass of________ ActionEvent? (a) ActionEvent (b) ItemEvent (a) Window (b) RadioButton (c) TextEvent (d) All of above (c) ScrollBar (d) None Q. 25 When we need to use Checkbox or Item from the Q. 15 ___________ method is used to register a list or use a checkable Menu an __________ is keyboard event listener. generated. (a) KeyListener( ) (a) ActionEvent (b) ItemEvent (b) addKeyListener( ) (c) MenuEvent (d) ClickEvent (c) addKeyListenerEvent( ) Q. 26 Which of the following constant is not defined in (d) eventKeyboardListener( ) WindowEvent class? Q. 16 Name the method defined in EventObject class (a) WINDOW_ACTIVATED that returns the object generated from the event. (b) WINDOW_CLOSED (a) getEvent( ) (b) getObject( ) (c) WINDOW_DEICONIFIED (c) getId( ) (d) getSource( ) (d) None of these Q. 17 The MouseListener interface is used to make Q. 27 Which of the following is not the method of mouse handling. handling window event? (a) True (a) void windowClosed(WindowEvent we) (b) False (b) void windowClosing(WindowEvent we) (c) void windowAfterClosing(WindowEvent we) Q. 18 ActionEvent is applied on ________ (d) All of these (a) Frame (b) Checkbox, Choice, List Q. 28 Which method is used to process mouse click? (c) Scrollbar (a) public void mouseClicked(MouseListener m) (d) Button, TextField, List, Menu (b) public void mouseIsClicked(MouseEvent m) (c) public void mouseClicked(MouseEvent m) Q. 19 ComponentEvent is the super class of __________. (d) public void mouseClick(MouseEvent m) (a) FocusEvent (b) MouseEvent (c) WindowEvent (d) All of the above Q. 29 Which class is used for this processing method processActionEvent( ) method? Q. 20 If we close an applet window _________ events will be generated. (a) Button, List, MenuItem (a) ActionEvent (b) ComponentEvent (b) Button,Checkbox,Choice (c) ScrollBar, Component, Button (c) AdjustmentEvent (d) WindowEvent (d) None of the above. Q. 21 Which of the following component generate ActionEvent? Q. 30 Which of this package contains all the classes and (a) ScrollBar (b) Window methods required for event handling in Java. (c) RadioButton (d) None of these (a) java.applet (b) java.awt (c) java.event (d) java.awt.event Q. 22 Which Listener handles all List related Events? Q. 31 Name the method defined in EvenObject class that (a) ItemListener (b) InputEvent returns the object generated from the event. (c) SelectEvent (d) ListEvent (a) getEvent( ) (b) getObject( ) Q. 23 How to obtain the command name for invoking (c) getId( ) (d) getSource( ) ActionEvent? Q. 32 Which of these interfaces define a method (a) getCommandName( ) actionPerformed() (b) getActionEventCommand( ) (a) ComponentListener (c) getActionCmd( ) (b) ContainerListener (d) getActionCommand( ) (c) ActionListener (d) InputListener  Advanced Java Programming (MSBTE) M3-3 MCQ - Event Handling Q. 33 Button Control implements following listener Q. 37 MouseEvent is subclass of which of the following interface. class? (a) ItemListener (b) ActionListener (a) ComponentEvent (c) FlowListener (d) Adapter (b) ContainerEvent Q. 34 Clicking the closing button on the upper right (c) ItemEvent corner of a frame generates a (n)‐event. (d) InputEvent (a) ItemEvent (b) WindowEvent Q. 38 The _________ is an object that is notified when (c) MouseMotionEvent(d) ComponentEvent an event occurs. Q. 35 Which of the following method must be (a) Listener overridden in the order to handle KeyEvent. (b) Sources (a) keyPressed(KeyEvent obj) (c) Event (b) KeyReleased(KeyEvent obj) (d) None of the above (c) KeyTyped(KeyEvent obj) Q. 39 What is the use of String getActionCommand( ) (d) All of these method of ActionEvent class? Q. 36 Which of these methods can be used to know the (a) to obtain the label (caption) of Button degree of adjustment made by the user? (b) to obtain the reference of Button (a) getValue( ) (c) to obtain object of Button (b) getAdjustmentType( ) (d) to obtain the label (caption) and object of (c) getAdjustmentValue( ) Button (d) getAdjustmentAmount( ) Answers Q.1 (c) Q.2 (d) Q.3 (c) Q.4 (d) Q.5 (b) Q.6 (c) Q.7 (a) Q.8 (b) Q.9 (c) Q.10 (b) Q.11 (a) Q.12 (d) Q.13 (d) Q.14 (d) Q.15 (b) Q.16 (d) Q.17 (a) Q.18 (d) Q.19 (d) Q.20 (d) Q.21 (d) Q.22 (a) Q.23 (d) Q.24 (d) Q.25 (b) Q.26 (d) Q.27 (c) Q.28 (c) Q.29 (a) Q.30 (d) Q.31 (d) Q.32 (c) Q.33 (b) Q.34 (b) Q.35 (d) Q.36 (c) Q.37 (d) Q.38 (a) Q.39 (a)  4 Networking Basics Unit IV Multiple Choice Questions for Online Exam Q. 1 UDP stands for ___________ Q. 7 IPv6 uses ________. (a) User Data Port (a) 4 groups of 8 bits each (b) User Datagram Protocol (b) 4 group of 8 hexa‐decimal digits (c) Used Data Provider (c) 8 groups of 4 digits each (d) User Data Protocol (d) 8 groups of 4 hexa‐decimal digits each Q. 2 Name the class which is used to create a port Q. 8 Select full form of DNS. where the server will listen. (a) Data Network System (a) Server (b) Socket (b) Domain Name System (c) ServerSocket (d) SocketServer (c) Domain Name Server Q. 3 Communication using TCP protocol is ______ and (d) Domain Naming Service ________. Q. 9 What is the use of WriteUTF( ) method? (a) Connection less, Iterative (a) This method writes a string into underlying (b) Collection less, concurrent output stream. (c) Connection oriented, Iterative (b) This method reads a sting from underlying (d) Connection oriented, concurrent input stream. Q. 4 Which of these is a not a factory method of (c) This method writes a byte array into InetAddress class? underlying output stream. (a) static InetAddress getLocalHost( ) (d) This method writes a character array into underlying output stream. (b) static InetAddress getByName(String hostname) Q. 10 Which of these is a bundle of information passed (c) static InetAddress getAllName(String between machines? hostname) (a) MIME (b) Cache (d) static InetAddress[ ] getAllByName(String (c) Datagram (d) Socket hostname) Q. 11 Port number for FTP is _______ Q. 5 Which from the below use “Middle tier”. (a) 21 (b) 23 (a) 3 tier (c) 25 (d) 80 (b) 4 tier Q. 12 The class which encapsulates both the numerical (c) n – tier IP address and the domain name for that address (d) all of the above is _____. Q. 6 java.net package consists of interface __________ (a) DatagramPacket (a) ContentHandlerFactory (b) DatagramSocket (b) SocketImplFactory (c) InetAddress (c) FileNameMap and URLStreamHandlerFactory (d) ServerSocket (d) All of the above  Advanced Java Programming (MSBTE) M4-2 MCQ - Networking Basics Q. 13 int getServerPort( ) method ____________ Q. 21 Which method of ServerSocket will wait for a (a) returns the port number on which this request client to initiate communication and then was received. communication with the client? (b) returns the port name on which the request (a) wait( ) (b) connect( ) was received. (c) waitForClient( ) (d) WaitForConnect( ) (c) returns the server number on which this Q. 22 _________ method is used to retrieve file name request was received. specified in URL. (d) returns the port number on which this (a) getFile( ) (b) getUrl( ) response/request was received. (c) getFileUrl( ) (d) getLocalFile( ) Q. 14 In this constructor ServerSocket(int port, int Q. 23 ________ is necessary to implement Datagram. max_queue) what is the default value for max_queue? (a) DatagramPacket (b) DatagramSocket (a) 100 (b) 50 (c) Both A & B (d) None of A & B (c) 75 (d) 80 Q. 24 Which is the correct syntax for getLocalHost( ) method? Q. 15 The constructor of URL can throw an exception called ______ (a) public static InetAddress getLocalHost( ) throws UnknownHostException (a) MalformedUrlException (b) public static IpAddress getLocalHost( ) throws (b) UrlNotFoundException UnknownHostException (c) UrlException (c) public static String getLocalHost( ) throws (d) UrlSourceNotFoundException UnknownHostException Q. 16 Which IP address is multicast IP address? (d) public static void getLocalHost( ) throws (a) 192.168.2.32 UnknownHostException (b) 235.55.45.2 Q. 25 Which of these method of DatagramPacket class is (c) 12.22.1.2 used to find the destination address? (d) None of these (a) findAddress( ) (b) getAddress( ) Q. 17 Which 5 parameters uniquely identify a (c) address( ) (d) whoIs( ) connection? Q. 26 Connection oriented communication is possible (a) Local IP, Remote IP, Local MAC, Remote MAC using ____________ classes of Java. and Protocol (a) Socket and ServerSocket (b) Local IP, Local PORT, Remote MAC, Remote (b) DatagramSocket and DatagramPacket PORT and Protocol (c) Both of these (c) Local MAC, Local PORT, Remote MAC, Remote (d) None of these PORT and Protocol (d) Local IP, Local PORT, Remote IP, Remote PORT Q. 27 A server socket can connect to ________ clients. and Protocol (a) 1 (b) 2 (c) 10 (d) multiple Q. 18 Select the method used to create URL connection. (a) URL Connection (b) open Connection Q. 28 Resolver in DNS system maps __________. (c) URL (d) URL Decoder (a) Domain name to IP address (b) IP address to domain name Q. 19 What value is returned by the readLine( ) method when it reach at End of File? (c) Domain name to MAC address (a) EOF (b) null (d) MAC address to IP address (c) 0 (d) END Q. 29 If a program consists of three classes, then after compilation how many class files will be created by Q. 20 The_________class is used to create TCP server. the compiler? (a) Server (b) SocketServer (a) one (b) three (c) ServerSocket (d) Socket (c) uncountable (d) zero  Advanced Java Programming (MSBTE) M4-3 MCQ - Networking Basics Q. 30 Which of the following is not a method of Security Q. 36 Which methods are commonly used in class? ServerSocket class? (a) socketPermission( ) (b) filePermission( ) (a) public OutputStream getOutputStream( ) (c) dataPermission( ) (d) None of above (b) public Socket accept( ) Q. 31 TCP does not supports Multicasting and (c) public synchronized void close( ) Broadcasting because ______________. (d) None of the above (a) It supports full duplex communication. Q. 37 Which is the proper method to retrieve the host (b) It provides error control. name of local machine? (c) It provides flow control (a) static InetAddress getLocalHost( ) throws (d) It is connection oriented protocol UnknownHostException Q. 32 Which of the following is true about TCP protocol? (b) static InetAddress getByName(String host_name ) throws UnknownHostException (a) is reliable and connection oriented (c) static InetAddress getAllByName(String (b) is unreliable but connection oriented host_name ) throws UnknownHostException (c) is reliable and connectionless (d) String getHostAddress( ) (d) None of these Q. 33 Which class defines following methods? Q. 38 Which constructor of DatagramPacket class are int getContentLength( ) used for receiving purpose? long getDate( ) (a) DatagramPacket(byte data[ ], int size) long getExpiration( ) DatagramPacket(byte data[ ], int size, int (a) URLConnection (b) Datagram offset, int port) (c) Client (d) None of these (b) DatagramPacket(byte data[ ], int size, InetAddress ip, int port) Q. 34 Name the class which is used to create a port DatagramPacket(byte data[ ], int offset, int where the server will listen? size, InetAddress ip, int port) (a) Server (b) Socket (c) DatagramPacket(byte data[ ], int size) (c) ServerSocket (d) SocketServer DatagramPacket(byte data[ ], int size, Q. 35 class Permission in java.security package is InetAddress ip, int port) __________. (d) All of these (a) static (b) abstract (c) final (d) None of these Answers Q.1 (b) Q.2 (b) Q.3 (d) Q.4 (c) Q.5 (d) Q.6 (d) Q.7 (d) Q.8 (d) Q.9 (c) Q.10 (c) Q.11 (a) Q.12 (c) Q.13 (d) Q.14 (b) Q.15 (a) Q.16 (d) Q.17 (b) Q.18 (a) Q.19 (b) Q.20 (c) Q.21 (b) Q.22 (a) Q.23 (d) Q.24 (a) Q.25 (b) Q.26 (c) Q.27 (d) Q.28 (b) Q.29 (b) Q.30 (d) Q.31 (d) Q.32 (a) Q.33 (a) Q.34 (b) Q.35 (b) Q.36 (b) Q.37 (a) Q.38 (d)  5 Interacting with Database Unit V Multiple Choice Questions for Online Exam Q. 7 Native – protocol pure Java Driver converts Q. 1 The __________ package contains classes that _______ into the _________ directly. help in connecting to a database, sending SQL (a) JDBC calls, network protocol statements to the database and process the query (b) ODBC class, network protocol request. (c) ODBC class, user calls (a) connection.sql (b) db.sql (d) JDBC calls, user calls (c) pkg.sql (d) java.sql Q. 8 Choose the correct syntax for getConnection( ) Q. 2 Which of the following is not a type of JDBC method. driver? (a) public static Connection getConnection(String (a) 100% pure Java Driver url, String password) throws SQLException (b) JDBC – net pure Java Driver (b) public static Connection getConnection(String (c) JDBC – Native API driver name, String password) throws SQLException (d) JDBC – Native pure Java Driver (c) public static Connection getConnection(String url, String name, String password) throws Q. 3 In JDBC ______________ imports all Java classes SQLException that are concern with Database connectivity. (d) public static Connection getConnection(String (a) javax.sql (b) java.mysql url, String name) throws SQLException (c) java.sql (d) com.sql Q. 9 SQL stands for __________. Q. 4 Database programming using Java throws which of (a) Structured Query Language the following exception? (b) Sequential Query Language (a) SQLException (c) Structured Question Language (b) ClassNotFoundException (d) Sequential Question Language (c) None of these (d) Both of these Q. 10 _____________ is a table of data which represents a data from table. Q. 5 In the below statement, which type of query can (a) MetaData (b) ResultSetMetaData be used with executeUpdate( ) method. (c) ResultSet (d) Statement statement.executeUpdate(query here) (a) Insert, Update, Delete Q. 11 Public class DriverManager extends ____________ (b) Insert, Select, Delete (a) Object (b) String (c) Only Select (c) Connection (d) Statement (d) Any Query Q. 12 Which of the following method is supported by Q. 6 What is purpose of next( ) method? Statement interface? (a) to retain the next element in a series. (a) public boolean execute(String query) (b) to retain next table. (b) public ResultSet executeQuery(String query) (c) to retain next record in a series. (c) public int executeUpdate(String query) (d) None of the above (d) All of above  Advanced Java Programming (MSBTE) M5-2 MCQ - Interacting with Database Q. 13 In following statement rs is an object of Q. 21 Identify correct syntax of executeQuery( ) of __________ interface of JDBC API. Statement interface. System.out.println(rs.getString(3)); (a) public static ResultSet executeQuery( ) (a) RowSet (b) Statement (b) public ResultSet executeQuery(String q) (c) Connection (d) ResultSet (c) public void executeQuery(String q) Q. 14 Which is main component of JDBC API? (d) public int executeQuery(String q) (a) DriverManager (b) Driver Q. 22 Native API converts ______ into the ______ used (c) Connection (d) All of these by DBMS. Q. 15 How many steps are used to connect any java (a) JDBC API, Network Protocol application with the database using JDBC ? (b) JDBC API, Native API calls (a) 5 (b) 4 (c) JDBC API, use calls (c) 3 (d) 6 (d) JDBC API, ODBC API calls Q. 16 ODBC minimum SQL grammer contains______ Q. 23 Which of the following function is used to find the (a) Stored procedure column count of the particular ResultSet. (a) getMetadata( ) (b) metadata( ) (b) Data, Time and TimeStamp only (c) create or drop View (c) getColumnCount( ) (d) getCount( ) (d) Insert, update, delete only Q. 24 The JDBC‐ODBC bridge supports how many concurrent open statements per connection ? Q. 17 Which class/interface is used for an SQL statement (a) 1 that is executed frequently? (b) 0 (a) Statement (b) CallableStatement (c) Does not support connection (c) PreparedStatement (d) None of these (d) None of the above Q. 25 Select the correct method to create CallableStatement. Q. 18 What does the following code do : smt = con.createStatement( ) (a) CallableStatement prepareCall(String sql) (a) A PreparedStatement object is created to (b) CallableStatement prepareCall(String sql, int resultset type, int resultset_concurrency) send SQL commands to database. (b) A Statement object is created to send SQL (c) CallableStatement prepareCall(String sql, int commands to database. resultset_type, int resultset_concurrency, int resultset_holdability) (c) A CallableStatement is created to send SQL commands to database. (d) All of the above (d) A Statement object is created to execute Q. 26 Microsoft Access data in _______ file format. parameterized SQL commands. (a).DAT (b).MDB Q. 19 Which kind of driver converts JDBC calls into calls (c).MSSQL (d).OBJ on the Client API for Oracle, Sybase, Informix, IBM Q. 27 Which of the following method is used for send DB2, or other DBMS SQL statements? (a) JDBC ODBC bridge + ODBC Driver (a) Statement (b) CallableStatement (b) Native API partly – Java Driver (c) PreparedStatement (d) Both B & C (c) JDBC – Net pure Java Driver Q. 28 DELETE statement of an SQL is executed by (d) Native Protocol Pure Java Driver ________. Q. 20 Which method executes an SQL statement that (a) execute( ) (b) executeQuery( ) may return multiple results? (c) executeUpdate( ) (d) executeDelete( ) (a) executeUpdate( ) Q. 29 The interface to the database is handle by _____. (b) executeQuery( ) (a) ODBC (b) JDBC (c) execute( ) (c) JDBC & ODBC (d) APIs (d) noExecute( )  Advanced Java Programming (MSBTE) M5-3 MCQ - Interacting with Database Q. 30 DatabaseMetadata are retrieved through Q. 32 Which of the following is used generally for ___________ reading the content of the database? (a) getDatabaseMetadata( ) (a) DabaseData (b) getMetaData( ) (b) DabaseData (c) getDBMetaData( ) (c) ResultSet (d) getDatabaseMeta( ) (d) DatabaseResult Q. 31 Which method is used to retrieve the ResultSet Q. 33 The syntax to create a table named “Course”, created? should begin with __________. (a) executeQuery( ) (a) create new table course (b) getResultSet( ) (b) create table course (c) getResultSetResult( ) (c) table course create (d) getResult( ) (d) new table course Answers Q.1 (d) Q.2 (d) Q.3 (c) Q.4 (d) Q.5 (a) Q.6 (c) Q.7 (d) Q.8 (c) Q.9 (a) Q.10 (c) Q.11 (a) Q.12 (d) Q.13 (d) Q.14 (d) Q.15 (a) Q.16 (d) Q.17 (c) Q.18 (b) Q.19 (b) Q.20 (b) Q.21 (b) Q.22 (b) Q.23 (c) Q.24 (a) Q.25 (d) Q.26 (b) Q.27 (d) Q.28 (c) Q.29 (b) Q.30 (a) Q.31 (a) Q.32 (c) Q.33 (b)  6 Servlets Unit VI Multiple Choice Questions for Online Exam (a) request.addCookie(new Cookie(“username” , Q. 1 JSP embeds __________ in ___________. “joe)); (a) Servlet, HTML (b) HTML, Java (b) response.addCookie(new Cookie(“username” , (c) HTML, Servlet (d) Java, HTML “joe”)) Q. 2 Which of the following is the default HttpRequest (c) request.addCookie(“username” , “joe); method? (d) request.addCookie(“username” , “joe); (a) doGet( ) (b) doPost( ) Q. 7 Which JSP tag is used to transfer for processing (c) doTrace( ) (d) doPut( ) another JSP page? Q. 3 Which are true about tag libraries in web (a) (b) application? (c) (d) (a) packaged in the /WEB‐INF directory or sub‐ directory of the WAR file Q. 8 An application wants to invalidate the session both programmatically and declaratively. Select the (b) If a tag is implemented as a tag file and best match to do this. packaged in /WEB‐INF/tags/ or a sub‐ directory, a TLD will be generated (a) httpRequest.getSession( ).end( ) automatically by the web container, though, you can provide one if you wish time_in_minutes (c) packaged in the /META‐INF/ directory or sub‐ directory of a tag library packaged in a jar. (b) httpRequest.getSession( ).invalidate( ) (d) All of the above. time_in_minutes Q. 4 Name the http method used to send resources to the server. (c) httpRequest.getSession( ).close( ) (a) FTP method (b) PUT method (c) WRITE method (d) COPY method time_in_minutes Q. 5 Identify the proper syntax of doGet( ). (a) void doGet(HttpResponse res,HttpRequest (d) httpRequest.getSession( ).invalidate( ) req) throws IOException, ServletException (b) void doGet(HttpRequest req,HttpResponse time_in_minutes res) throws IOException, ServletException (c) void doGet(HttpResponse res) throws Q. 9 The include( ) method in RequestDispatcher ____. IOException, ServletException (a) sends a request to another resource like (d) void doGet(HttpRequest req) throws servlet, JSP or html. IOException, ServletException (b) includes resources of file like servlet, JSP or Q. 6 Given an HttpServletRequest request and html. HttpServletResponse response instances. Which (c) appends the request and response objects to sets a cookie “username” with the value “joe” in a the current servlet. servlet? (d) None of these  Advanced Java Programming (MSBTE) M6-2 MCQ - Servlets Q. 10 State true or false for following statements. Q. 19 _________ is the first Phase of Servlet Life cycle. (i) JavaBeans slow‐down software development (a) service( ) (b) init( ) process. (c) destroy( ) (d) Both B & C (ii) Java Servlets do not have built‐in multithreaded Q. 20 How many copies of a JSP page can be in memory feature. at a time? (a) false, false (b) false, true (a) 1 (b) 2 (c) true, false (d) true, true (c) 3 (d) Unlimited Q. 11 ________ is a small piece of information that is Q. 21 Which method is used to specify before any lines passed back & forth in HTTP request & response. that used the PrintWriter? (a) Servlet (b) Applet (a) setPageType( ) (c) Cookie (d) Session (b) setContextType( ) Q. 12 Which life cycle method is used to process a (c) setContentType( ) client’s request? (d) setResponseType( ) (a) start( ) (b) init( ) Q. 22 _________ is used to read data from a client (c) service( ) (d) destroy( ) request. Q. 13 A user types the URL (a) ServletResponse (b) ServletRequest http://www.msbte.com/result.php. Which request (c) Servlet (d) ServletConfig gets generated? (a) GET method (b) POST method Q. 23 The following methods belongs to the life cycle methods of the servlet. (c) HEAD method (d) PUT method (a) init( ) (b) service( ) Q. 14 Apache Tomcat is ________. (c) destroy( ) (d) All of the above (a) Servlet Q. 24 Java servlet (b) Java Program (c) API (i) is a key component of the server side java (d) Web server capable of running Java programs development. Q. 15 What the getSession( ) method with “true” (ii) is a small pluggable extension to a server that parameter will do? enhances functionality (a) The session is completed (iii) runs only in windows OS (b) The session object is passed to another method (iv) allows developers to customize any java enabled server (c) Creates new session if, the session does not exist (a) i, ii and iii are true (d) The session is exist (b) i,iii and iv are true (c) ii,iii and iv are true Q. 16 A JSP page consists of which tags? (d) i,ii and iv are true (a) HTML tags (b) JSP tags (c) Both A & B (d) None of the above Q. 25 Servlet lifecycle has _________ states. (a) Two (b) Three Q. 17 Life cycle of a servlet is managed by ______ (c) Four (d) Five (a) Servlet Context (b) Servlet Container (c) Supporting protocol (d) All of the above Q. 26 JSP life cycle includes ________ number of phases. (a) Two (b) Three Q. 18 To send binary output in the response, the (c) Four (d) Five following method of HttpServlet response many be used to get the appropriate Writer/Stream Q. 27 How to send data in get method? object. (a) using GET method in request (a) getStream( ) (b) getOutputStream( ) (b) using Requesting URL (c) getBianaryStream( ) (d) getWriter( ) (c) using Response URL (d) using URL  Advanced Java Programming (MSBTE) M6-3 MCQ - Servlets Q. 28 JSP life cycle includes following Q. 31 Which class provides stream to read binary data (a) Translation Phase such as image et(c) from the request object? (b) Compilation Phase (a) ServletInputStream (b) ServletOutputStream (c) Request handling phase (c) Both a & b (d) None of the above (d) All of these Q. 32 What is the limit of data to be passed from HTML Q. 29 JSP stands for _______. to doGet() ? (a) Java Service Provider (a) 8kb (b) 1kb (b) Java Server Path (c) 4kb (d) 2kb (c) Java Server Pages Q. 33 The major difference between Servlet and CGI is (d) Java Server Program _______. (a) Servlets are thread based and CGI is process Q. 30 The authentication mechanism in the servlet based. specification uses a technique called ? (b) Servlet executes slower than CGI. (a) Role Based Authentication (c) Servlet has no platform specific API where as (b) Form Based Authentication CGI has. (c) Both a & b (d) All of these (d) None of the above Answers Q.1 (d) Q.2 (a) Q.3 (d) Q.4 (b) Q.5 (b) Q.6 (b) Q.7 (b) Q.8 (b) Q.9 (c) Q.10 (a) Q.11 (c) Q.12 (c) Q.13 (b) Q.14 (d) Q.15 (c) Q.16 (c) Q.17 (b) Q.18 (b) Q.19 (b) Q.20 (a) Q.21 (c) Q.22 (b) Q.23 (d) Q.24 (d) Q.25 (b) Q.26 (d) Q.27 (a) Q.28 (d) Q.29 (c) Q.30 (c) Q.31 (a) Q.32 (d) Q.33 (d)