Deck 25: Web Applications

Question 1

One of the required steps in designing a JavaBean is:

A) Implement the get and set methods for all properties.
B) Implement a constructor with one argument.
C) Implement the helper methods.
D) Add the JSF components needed.

Answer 1

A

Question 2

The keys of the map specified in f:selectItems are the ____ that are displayed next to each choice.

A) attributes
B) text
C) labels
D) values

Answer 2

C

Question 3

______ of a bean component can be accessed by tools without having to write Java code.

A) Options
B) Elements
C) Types
D) Properties

Answer 3

D

Question 4

Which of the following contains a method expression?

A)
B)
C)
D) ...

Question 5

What does the value expression timeBean.time do?

A) Sets the timeBean.time instance variable.
B) Calls the timeBean.setTime method
C) Calls the timeBean.getTime method
D) Creates an input field called time.

Question 6

____ support the separation of presentation and business logic.

A) Session expressions
B) Application expressions
C) Value expressions
D) Method expressions

Question 7

Suppose a DictionaryBean class has a method String getLanguage(). Which JSF page statement would display the language properly?

A) The language of the dictionary is value="dictionaryBean.getLanguage".
B) The language of the dictionary is #{dictionaryBean.getLanguage}.
C) The language of the dictionary is value="#{dictionaryBean.language}".
D) The language of the dictionary is #{dictionaryBean.language}.

Question 8

Which of the following is an example of a server with a JSF container?

A) JSF
B) GlassFish
C) JDBC
D) JSP

Question 9

JSF page syntax is a mixture of ______ and JSF-specific tags.

A) XML
B) Beans
C) HTML
D) JSP

Question 10

Name one of the requirements for a Java class to become a JavaBean?

A) A JavaBean must have get, set, and command action methods.
B) A JavaBean must have only get and set methods.
C) A JavaBean must have a public constructor with one or more arguments.
D) A JavaBean must have a public constructor with no arguments.

Question 11

The collection of choices for a radio button tag can be specified with a ___ tag.

A) f:selectItems
B) f:Items
C) f:selectRadioItems
D) f:selectChoiceItems

Question 12

In a web application, the web server sends pages formatted in ____.

A) XML
B) HTML
C) Text
D) JavaBeans

Question 13

In JSF, button groups and ____ require that you specify two properties: the collection of possible choices and the actual choice.

A) menus
B) cookies
C) images
D) text areas

Question 14

What does the value expression timeZoneBean.city do when it is part of the JSF tag ?

A) Sets the timeBean.city instance variable.
B) Calls the timeBean.setTime method
C) Calls the timeBean.setTime method method
D) Calls either the timeBean.setTime or timeBean.setTime method

Question 15

The Java library contains a _______ class that provides information about time zones around the world.

A) Time
B) Zone
C) TimeDate
D) TimeZone

Question 16

The ____ tag is used to specify all choices for a component that allows selection from a list of choices.

A) h:commandButton
B) f:selectItems
C) h:selectManyRadio
D) h:inputText

Question 17

If the scope of a managed bean has been set to _______, then the bean stays alive during multiple requests from the same browser.

A) session
B) global
C) private
D) public

Question 18

____ link JSF pages with Java objects.

A) JavaBeans
B) Browsers
C) Value expressions
D) Session bindings

Question 19

Every bean must have a ____ with no arguments.

A) read method
B) set method
C) constructor
D) get method

Question 20

The purpose of a JSF page is to generate a ____ page.

A) Hyper Text Markup Language
B) Server
C) Java Formatted
D) Browser

Question 21

A set of JSF pages makes ________.

A) the user interface of a web application.
B) the user interface of a database application.
C) the user interface of a server application.
D) the user interface of a client application.

Question 22

Several elements of a JSF page are tags with a(n) ________.

A) h: prefix.
B) a: prefix.
C) D)

Question 23

Which of the following represents part of the business logic of a three-tier application?

A) Web browser
B) The database
C) JSF container
D) The network

Question 24

Where does the application program of a web application reside?

A) On the client server.
B) On the web server.
C) On the client side.
D) On the browser client.

Question 25

A JSF page contains ________.

A) HTML tags.
B) HTML tags and JSF tags.
C) JSF tags only.
D) no tags at all.

Question 26

The JSF tags are dynamically translated into HTML tags and text. In this context, dynamic means:

A) the translation uses polymorphism.
B) the translation depends on the current state of Java objects.
C) the translation is done by the web browser.
D) the translation changes the state of the Java objects.

Question 27

What is the difference between the client-server architecture and the three-tier architecture?

A) In the three-tier architecture, each tier is a database server.
B) In the client-server architecture, each client program has a presentation layer.
C) The three-tier application must be distributed over all desktops, but client-server does not.
D) The client-server application must reside on a server, but three-tier does not.

Question 28

A method _________ specifies a bean and a method that should be invoked on the bean.

A) property
B) name
C) expression
D) value

Question 29

One of the web application frameworks that has been developed is ________.

A) JavaServer Framework
B) JavaServer Faces
C) HTTP
D) JEEF

Question 30

The user interface of a JSF application is described by ________.

A) a set of HTML-only pages.
B) a set of JSF servers.
C) a set of JSF events.
D) a set of JSF pages.

Question 31

When a form from a web application is submitted by a user, where are the form elements sent?

A) to a database pool
B) to a server browser
C) to a web browser
D) to a web server

Question 32

Both Swing and JSF handle the tedious details of capturing user input, but JSF ________.

A) is a client application.
B) hides high-level details.
C) handles form-posting events.
D) paints pixels in a frame.

Question 33

A _______ is an application whose user interface is displayed in a web browser.

A) server application
B) web application
C) client application
D) internet application

Question 34

To query a database, a JavaBean needs a(n) ____________ object.

A) Table
B) Connection
C) Bean
D) HTML

Question 35

An HTML page contains ____ that describe the structure of the page.

A) heading
B) links
C) tags
D) input elements

Question 36

Which of the following statements is correct?

A) A server with a JSF container such as GlassFish manages a pool of database connections.
B) JSF tags use XML syntax but the / before the closing angle bracket is not required.
C) JSF tags are case insensitive.
D) A JSF page cannot contain XML tags.

Question 37

The _______ converts a JSF page to an HTML page.

A) JSF translator
B) JSF compiler
C) JSF container
D) HTML converter

Question 38

Swing differs from JSF in that it ________.

A) handles form-posting events.
B) paints pixels in a frame.
C) paints by emitting HTML code.
D) hides high-level details.

Question 39

The user interface of a web application is displayed in a ______.

A) protocol
B) server browser
C) web browser
D) web server

Question 40

When a submit button is pressed in a simple JSF application, what does the outcome string represent?

A) the next page to be displayed
B) the error message to be displayed
C) the data submitted by the user
D) the data to be displayed

Question 41

JSF pages define the ___________ of a web application.

A) swings
B) presentation logic
C) business logic
D) value expressions

Question 42

The application server listens to web requests, typically on which port?

A) 80
B) 8000
C) 8080
D) 1560

Question 43

A _____ is an object that is controlled by the JSF container.

A) TimeBean
B) HTML page
C) JSF page
D) managed bean

Question 44

The name of the bean in the expression #{timeBean.time} is:

A) time
B) timeBean
C) Bean
D) timeBean.time

Question 45

Managed beans define the ___________ of a web application.

A) swing
B) presentation logic
C) business logic
D) value expressions

Question 46

The expression #{timeBean.time} is called a ____________.

A) bean expression
B) time expression
C) value expression
D) managed bean

Question 47

All application files in a web application should be zipped up by running the _____ command.

A) zip
B) jar
C) unzip
D) war

Question 48

One of the steps in deploying a JSF application is to _______ of the web application:

A) Create a WEB-INF subdirectory in the root directory of the application directory
B) Create an INF-WEB subdirectory in the root directory of the application directory
C) Create a WEB-INF subdirectory in the application directory
D) Create a WEB-INF/classes subdirectory in the root directory of the application directory

Question 49

The part of the web application that is independent of the graphical user interface is called:

A) Swing.
B) presentation logic.
C) business logic.
D) HTML.

Question 50

The JSF technology enables the separation of :

A) HTML and Swing.
B) presentation and application.
C) business logic and presentation.
D) JSF and HTML.

Question 51

What do you need to run a JSF application?

A) A server and a client.
B) A server with swing.
C) Presentation and business logic.
D) A server with a JSF container.

Question 52

One of the steps in deploying a JSF application is to _______ of the web application:

A) Place the file web.xml in the WEB-INF directory
B) Place the file web.xml in the root directory
C) Place the file web.xml in the WEB-INF/classes directory
D) Place the file web.xml in the modules directory

Question 53

All application files in a web application should be zipped up into a file with extension:

A) )zip
B) )jar
C) )web
D) )war

Question 54

What does the second period in the following command denote? jar cvf time.war .

A) The root directory.
B) The parent directory
C) The current directory
D) The jar command directory

Question 55

With GlassFish, the default deployment directory is called:

A) domains/deploy
B) domains/domain1/deploy
C) domains/autodeploy
D) domains/domain1/autodeploy

Question 56

One of the steps in deploying a JSF application is to _______ of the web application:

A) Place JSF pages (such as index.xhtml) in the WEB-INF directory
B) Place JSF pages (such as index.xhtml) in the root directory
C) Place JSF pages (such as index.xhtml) in the WEB-INF/classes directory
D) Place the file web.xml in the root directory

Question 57

The expression #{timeBean.time} calls the ____________ method.

A) time
B) setTime
C) getTime
D) displayTime

Question 58

When deploying a JSF application, all class files must be placed in the _______ directory:

A) WEB-BEAN/classes/
B) BEAN-INF/classes/
C) WEB/INF/classes/
D) WEB-INF/classes/

Question 59

The user interface of a web application is called:

A) Swings
B) presentation logic
C) business logic
D) XML

Question 60

Value expressions tie the ___________ together to make a web application.

A) GUI and the database server
B) managed beans and JSF pages
C) JSF and Swing components
D) JSF and HTML

Question 61

The string that determines the next page that the JSF container sends to the browser is called the __________________.

A) bean navigator
B) outcome string
C) JavaBean result
D) HTML string

Question 62

Which method(s) will this line from a JSF page call when the user submits the page?

A) TimeZoneBean.getCity()
B) TimeZoneBean.setCity()
C) TimeZoneBean.getCity() and TimeZoneBean.setCity()
D) TimeZoneBean.checkCity() and TimeZoneBean.setCity()

Question 63

What does a method expression consist of?

A) The name of a bean only.
B) An outcome.
C) The name of a method only.
D) The name of a bean and the name of a method.

Question 64

One of the corresponding methods for a JavaBean property called ID is:

A) getid()
B) getID()
C) getId()
D) GetId()

Question 65

_______ were invented to overcome the stateless protocol restrictions of HTTP.

A) Protocols
B) POP protocols
C) Servers
D) Cookies

Question 66

Consider the following code fragment: public String checkCity()
{
Zone = getTimeZone(city);
If (zone == null) { return "error"; }
Return "next";
}
What is the result of executing the following JSF statement if zone is null?

A) An error message is printed.
B) The error.html page is displayed.
C) The next.html page is displayed.
D) The same page is displayed again.

Question 67

If a JavaBean property has only a get method, then it is __________________.

A) a write-only property.
B) a read-write property.
C) a read-only property.
D) a hidden only property.

Question 68

When is displayed, the JSF container calls the __________________.

A) time method.
B) setTime method.
C) getTime method.
D) both the setTime and the getTime methods.

Question 69

Consider the following code fragment: public String checkCity()
{
Zone = getTimeZone(city);
If (zone == null) { return "error"; }
Return "next";
}
Which JSF statement will call this method?

A)
B)
C)
D)

Question 70

Which method(s) will this line from a JSF page call?

A) TimeZoneBean.getCity()
B) TimeZoneBean.setCity()
C) TimeZoneBean.getCity() and TimeZoneBean.setCity()
D) TimeZoneBean.checkCity() and TimeZoneBean.setCity()

Question 71

Which method(s) will this line from a JSF page call? The current time is #{timeBean.time}

A) TimeBean.getCity()
B) TimeBean.setCity()
C) TimeBean.getCity() and TimeBean.setCity()
D) TimeBean.checkCity() and TimeBean.setCity()

Question 72

One of the corresponding methods for a JavaBean property called city is:

A) getcity()
B) getCity()
C) GetCity()
D) Getcity()

Question 73

If a JavaBean property has only a set method, then it is __________________.

A) a write-only property.
B) a read-write property.
C) a read-only property.
D) a hidden only property.

Question 74

A _______ consists of a small string that the web server sends to a browser and that is later sent back to the same server.

A) stateless protocol
B) tasteless protocol
C) cookie
D) jar

Question 75

When the string The current time is #{timeBean.time} is rendered, the JSF container calls the __________________.

A) time method.
B) setTime method.
C) getTime method.
D) both the setTime and the getTime methods.