CIW 1D0-635 問題集

質問 1：
You want to add a personalized interaction with your users when they enter your Web site. To do this, you can display a JavaScript prompt on the home page that asks the user to enter her name. When the user enters text and clicks the OK button, an alert dialog box will appear and display the text "Welcome, name" (where name is the text entered by the user). Which choice shows the correct JavaScript code for this action?
A. alert("Welcome, ") + prompt("What is your name?", "");
B. prompt("What is your name?", "") + alert("Welcome, ");
C. prompt("What is your name?", "" + alert("Welcome, "));
D. alert("Welcome, " + prompt("What is your name?", ""));
正解：D

質問 2：
In an X/HTML form, which script block will retrieve an input value and display it back without errors or warnings?
A. <script type="text/javascript">
function ShowEntry() {
document.getElementById("i");
var s = i.innerHTML;
document.getElementsByName("d").innerHTML = s; }
</script>
<input id="i" onchange="ShowEntry()" /><br />
You entered: <span id="d"></span>
B. value = s; }
</script>
<input id="i" onchange="ShowEntry()" /><br />
You entered: <span id="d"></span>
C. <script type="text/javascript">
function ShowEntry() {
var inp = document.getElementById("i");
var s = inp.value;
document.getElementById("d").innerHTML = s; }
</script>
<input id="i" onchange="ShowEntry()" /><br />
You entered: <span id="d"></span>
D. <script type="text/javascript">
function ShowEntry() {
var inp = document.getElementById("i");
var s = inp.value;
document.getElementsbyName("d").innerHTML = s; }
</script>
<input id="inp" onchange="ShowEntry()" /><br />
You entered: <span id="d"></span>
E. <script type="text/javascript">
function ShowEntry() {
var inp = document.getElementById("i");
var s = inp.value;
正解：D

質問 3：
When using AJAX, what is the purpose of the XMLHttpRequest object?
A. To request either XML data or plaintext data from the Web server
B. To request data from the Web server strictly in XML format
C. To transfer an XML document to the Web server
D. To read and write to an XML file stored on the local machine
正解：A

質問 4：
What is the purpose of the prototype property in JavaScript?
A. It returns a list of properties and methods of a JavaScript object.
B. It enables developers to create JavaScript code from a specially formatted prototype flowchart document.
C. It is used to add properties or methods to a JavaScript object.
D. It is used to create usage examples of custom objects because its output is not evaluated by the JavaScript interpreter.
正解：C

質問 5：
Jane has created a file with commonly used JavaScript functions and saved it as "allFunctions.js" in the application's root directory. She wants to load this file into a Web page to access its functions. Which statement shows the correct syntax to do this?
A. <script type="text/@linked" javaScript="allFunctions.js"> </script>
B. <script link="javascript/external" href="/allFunctions.js"> </script>
C. <script link="text/javascript" href="/allFunctions.js"> </script>
D. <script type="text/javascript" src="/allFunctions.js"> </script>
正解：D

質問 6：
Consider the following code:

When an invalid e-mail address is entered, an alert is displayed to the user, but the form submission is not interrupted. What changes need to be made to the script in order to abort the submission if an invalid e-mail address is entered?
A. Add return false after the alert() statement.
B. Add validate false after the alert() statement.
C. Change return to validate in the function call.
D. Remove the return keyword from the function call and put it in front of the alert() statement.
正解：A