IBM A2040-922 問題集

質問 1：
Jeremy wants all of the dijit.Dialog boxes in his application to call a client side JavaScript function called "validateForm" whenever they are hidden. What is the best solution?
A. Create a custom Dojo control and use that instead of the standard dijit.Dialog in the application
using the following code:
/**
*Custom Dojo Control
*/
dojo.provide('com.myco.widget.Dialog');
dojo.require('dijit.Dialog');
(function(){
dojo.declare("com.myco.widget.Dialog", dijit.Dialog, {
onHide: validateForm
})
}());
/**
*Initialization code
*/
var dialog = new dijit.Dialog();
B. In the "Close" or "Cancel" button of each dialog add a call to validateForm in the onClick event.
C. Create a custom Dojo control and use that instead of the standard dijit.Dialog in the application
using the following code:
/**
*Custom Dojo Control
*/
dojo.provide('com.myco.widget.Dialog');
dojo.require('dijit.Dialog');
(function(){
dojo.declare("com.myco.widget.Dialog", dijit.Dialog, {
onHide: validateForm
})
}());
/**
*Initialization code
*/
var dialog = new com.myco.widget.Dialog();
D. Create a custom Dojo control and use that instead of the standard dijit.Dialog in the application
using the following code:
/**
*Custom Dojo Control
*/
dojo.provide('com.myco.widget.Dialog');
dojo.require('dijit.Dialog');
(function(){
dojo.declare("com.myco.widget.Dialog", dijit.Dialog, {
onHide: validateForm
})
}());
/**
*Initialization code
*/
var dialog = new com.myco.widget.Dialog();
E. Create a custom Dojo control and use that instead of the standard dijit.Dialog in the application
using the following code:
/**
*Custom Dojo Control
*/
dojo.provide('com.myco.widget.Dialog');
dojo.require('dijit.Dialog');
(function(){
dojo.declare("com.myco.widget.Dialog", dijit.Dialog, {
onHide: validateForm
})
}());
/**
*Initialization code
*/
var dialog = new com.myco.widget.Dialog();
F. Create a custom Dojo control and use that instead of the standard dijit.Dialog in the application
using the following code:
/**
*Custom Dojo Control
*/
dojo.provide('com.myco.widget.Dialog');
dojo.require('dijit.Dialog');
(function(){
dojo.declare("com.myco.widget.Dialog", dijit.Dialog, {
onHide: validateForm
})
}());
/**
*Initialization code
*/
var dialog = new com.myco.widget.Dialog();
G. Whenever he initializes a new dijit.Dialog, add an onHide event like so:
var dialog = new dijit.Dialog({
onHide: validateForm
}
);
正解：C,D,E,F

質問 2：
John wishes to add a Java Class to his XPages application. How would he do this?
A. Switch to the Java Perspective and create a new Java Source Folder within the application (using the Package Explorer), and create the Java Class within that folder
B. Switch to the Java Perspective, navigate to the "Local" Java Source Folder within the application (using the Package Explorer), and create the Java Class within that folder
C. Expand his application in the "Applications Navigator" and create a new Java Script Library and place the necessary Java logic within that script library?
D. Expand his application in the "Applications Navigator" and create a new Java Agent, place the necessary Java logic within the agent, and call the agent from within the XPage
正解：A

質問 3：
John has a JavaScript function in a Client Side JavaScript library which he wrote to parse some JSON data and loop through the resulting objects. If he wanted to perform the same task in Server Side JavaScript what would be the most efficient action?
A. copy the Client Side function into a Server Side JavaScript library, add the script library to his XPage and call the function from his Server Side JavaScript
B. add the Client Side JavaScript library to his XPage and call the function from his server side JavaScript
C. write a new function in Server Side JavaScript to perform the same task
D. Server Side JavaScript does not work with JSON data
正解：A

質問 4：
Liz must do a code review of a third party XPages application in order to optimize performance wherever possible. She has come up with a shortlist of things to do. Each of the following can be used to improve performance EXCEPT which one?
A. Using partial refresh wherever possible.
B. Using viewScope variables to manage application state wherever possible
C. Setting the dataCache property on Domino view data sources to "full" wherever possible
D. Replacing post-based requests with get-based requests wherever possible
正解：C

質問 5：
Marco has built an XPage that has increased in complexity over time and now contains several hundred lines of XSP markup, with many postback actions that conditionalize the display of the page. He feels that the page does not perform well and is looking to improve the responsiveness for the end-user. He is considering the following actions to improve performance. All of the following actions may improve performance EXCEPT which one:
A. Use Partial Refresh to conditionally redraw only those parts of the page impacted by postback actions.
B. Conditionally set the "loaded" property to "true" for controls and data sources that are displayed, and "false" when they are hidden.
C. Use scoped variables to store/retrieve data that will not change between postback requests.
D. Reduce the size of the page by splitting it up into several custom controls wherever possible.
正解：D

質問 6：
John has a managed bean which is defined as follows: <faces-config> <managed-bean> <managed-bean-name>distanceConverter</managed-bean-name> <managed-beanclass>bean.MyBean</managed-bean-class> <managed-bean-scope>view</managed-beanscope> </managed-bean> </faces-config> The bean has a property called 'miles' which allows a distance in miles to be entered and converted to kilometers. John wishes to have a user enter a value via an edit box and use the managed bean to convert the value from miles to kilometers. What should the value of the edit box's value attribute be in order to utilize the managed bean?
A. <xp:inputText id="inputText1" value="#{view.distanceConverter.miles}"></xp:inputText>
B. <xp:inputText id="inputText1" value="#{distanceConverter.miles}"></xp:inputText>
C. <xp:inputText id="inputText1" value="#{bean.MyBean.setMiles()}"></xp:inputText>
D. <xp:inputText id="inputText1" value="distanceConverter.miles"></xp:inputText>
正解：B