Question No: 1

Consider the following code:

<script type="text/javascript"> var v1 = "alpha"; function f () { var v2 = "bravo"; alert (v1 + ", " + v2); } f(); v1="charlie"; alert (v1 + ", " + v2); </script> What is the expected result when you run this script in the browser?

A. An alert box displaying charlie, bravo

B. An alert box displaying alpha, bravo followed by an error

C. Two alert boxes displaying alpha, bravo and alpha, bravo respectively

D. Two alert boxes displaying alpha, bravo and charlie, bravo respectively, followed by an error

Question No: 2

Suppose you define two variables as follows:

var x = 5;

var y = "5";

Which statement will return the mathematical sum of these variables?

A. alert(x + int(y));

B. alert(x + parseInt(y));

C. alert(x + y);

D. alert((int)x + (int)y);

Question No: 3

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() {

var inp = document.getElementById("i");

var s = inp.value;

B. value = s; }

</script>

<input id="i" onchange="ShowEntry()" /><br /> You entered: <span id="d"></span>

C. <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>

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;

document.getElementById("d").innerHTML = s; }

</script>

<input id="i" onchange="ShowEntry()" /><br /> You entered: <span id="d"></span>

Question No: 4

Which of the following will correctly declare the EmployeeID variable as a string data type?

A. string EmployeeID = 123;

B. string EmployeeID = "123";

C. var EmployeeID = 123;

D. var EmployeeID = "123";

Question No: 5

Consider the following statement: for (X; Y; Z)

What does Z represent in this code?

A. The counter variable

B. The loop counter update expression

C. The condition under which the loop will execute

D. The highest value that the counter variable may reach

Question No: 6

You are developing a Web page for your company's site, and you plan to use a library plug-in from the jQuery library. Which choice describes the proper steps for using the plug- in?

A. After locating the plug-in that you want to use, you then copy the code from the jQuery site and paste it into your CSS file using the <script>tag.

B. After locating the plug-in that you want to use, you then download the EXE file and install it on your browser. The plug-in will take effect afteryou restart the browser.

C. After locating the plug-in that you want to use, you download the plug-in, compile the code and upload it to your server, then you reference thecompiled code with a <script> tag in your X/HTML file.

D. After locating the plug-in you want to use, you add to your X/HTML file a <script> tag referencing the jQuery library and a <script> tagreferencing the external plug-in file.

Question No: 7

Which of the following is a browser security issue that JavaScript developers should remember when developing a script?

A. JavaScript cannot be disabled in the client and will always run.

B. JavaScript functionality is immune to viruses, trojans and malware.

C. JavaScript is a cross-platform scripting language and will generate consistent results regardless of the client or server being used.

D. Certain JavaScript functionality may be blocked by some browsers, which prevents the script from running as expected for all users.

Question No: 8

Consider the following code:

What is the expected output when you run this script in a browser?

A. A button labeled Click Me will appear, with an input box that displays the following default text: Old Value. Upon clicking the button, the textin the text box will change to New Value. Upon clicking the button again, the text in the text box will change back to Old Value.

B. A button labeled Click Me will appear, with an input box that displays the following default text: Old Value. Upon clicking the button, the text inthe text box will change to New Value. Upon clicking the button again, the text in the text box will change to Old Value, New Value.

C. A button labeled Click Me will appear, with an input box that displays the following default text: Old Value. Upon clicking the button, the text inthe text box will change to New Value. Upon clicking the button again, you will see nothing change.

D. This script will not run. You will get an error because the value="Old Value" statement in the <input> tag contains the reserved wordValue within the quotes.

Question No: 9

Which statement about the JavaScript form object is true?

A. The JavaScript form object has no relationship to the X/HTML <form> element.

B. You can use a single instance of the form object to represent multiple forms on a Web page.

C. The form object cannot be used to access the individual field elements that compose the form.

D. The JavaScript form object is available when the X/HTML <form></form> tags are present in the X/HTML document.

Question No: 10

Which is the best technique to test a script for cross-browser compatibility?

A. Use the W3C site's code validator to test the script.

B. Test the script in various versions of the same browser.

C. Test the script in various browsers, including various versions of the same browsers.

D. Determine the most frequently used browser for your target audience and then test the script in that browser.