IBM C2040-922 問題集

質問 1：
Peter wants to enhance the view controls used in his application so that they can display rich content from the underlying document collection. He wants to do this in an efficient manner as the application has thousands of documents and is accessed by hundreds of concurrent users. Which of the following approaches should John take to add this enhancement to his application most efficiently?
A. Nothing - XPages view controls cannot display rich content.
B. Add a computed column to the view control that opens each document, set the column content type to HTML, and bind the rich text content from each document using JavaScript code.
C. Modify the Domino view to include the rich text field and add a new column to his view controls that automatically binds to this field.
D. Add an action to each column that will retrieve the rich text content from the underlying document when clicked, assign it to a computed field with content type set to HTML, and then display that field.
正解：D

質問 2：
John wishes to create a component that is capable of saving its state as the JSF component tree is being saved and restored. In order to do this, John's component must implement which of the following interfaces:
A. javax.faces.component.DataHolder
B. javax.xpages.component.StateHolder
C. com.ibm.xpages.component.XPStateHolder
D. javax.faces.component.StateHolder
正解：D

質問 3：
Liz wants to make the user confirm their action when they try and delete a document from the application using a delete button. The confirmation message needs to display the title of the document in it. What is the best way to compute this message?
A. In the server side event of the delete button use the following code:
if (confirm("Are you sure you want to delete the document " +
"#{javascript:document1.getItemValueString('title')}"){
return true;
}else{
return false;
}
B. In the client side event of the delete button use the following code:
if (confirm("Are you sure you want to delete the document " +
document1.getItemValueString('title'))){
return true;
}else{
return false;
}
C. In the server side event of the delete button use the following code:
if (confirm("Are you sure you want to delete the document " +
document1.getItemValueString('title'))){
return true;
}else{
return false;
}
D. In the client side event of the delete button use the following code:
if (confirm("Are you sure you want to delete the document " +
"#{javascript:document1.getItemValueString('title')}")){
return true;
}else{
return false;
}
正解：D

質問 4：
Fred wants to remove any reference to pre-defined CSS frameworks such as OneUI from his XPages application. How does he achieve this?
A. Create a new Theme which removed the extends property from the theme definition like this:
<theme>
</theme>
B. Create a new Theme which extends the "webstandard" framework like this:
<theme extends="webstandard">
</theme>
C. It is not possible to remove all CSS files from an XPages application
D. Create a new Theme which extends the "none" framework like this:
<theme extends="none">
</theme>
正解：A

質問 5：
Lydia wants to create a JSON string to represent an array with three objects. Each object has two variables, vA and vB, set to different string values of "one", "two", "three", "four", "five", and "six". What is the proper syntax for the JSON string?
A. "[ { vA: 'one', vB: 'two' },{ vA: 'three', vB: 'four' },{ vA: 'five', vB: 'six' } ]"
B. [ { vA: 'one', vB: 'two' },{ vA: 'three', vB: 'four' },{ vA: 'five', vB: 'six' } ]
C. new Array(new Object({ vA: 'one', vB: 'two' }), new Object({ vA: 'one', vB: 'two' }), new Object({ vA: 'one', vB: 'two' }));
D. "[ { vA: one, vB: two },{ vA: three, vB: four },{ vA: five, vB: six } ]"
正解：A

質問 6：
Joe wishes to retrieve the HttpServletRequest while his XPage is loading. Which of the following is true regarding this activity?
A. Joe needs to add the following server side JS code to the afterPageLoad event: var request =
facesContext.getRequest();
B. Joe needs to add the following client side JS code to the beforePageLoad event:
var clientContext = facesContext.getClientContext();
var request = clientContext.getRequest();
C. It is not possible to obtain this information as an XPage is loading
D. Joe needs to add the following server side JS code to the beforePageLoad event:
var externalContext = facesContext.getExternalContext();
var request = externalContext.getRequest();
正解：D

質問 7：
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