JavaScript

Question 1 (1 point)

Which of the following statements is NOT true?

Question 1 options:

	The DOM for a web page is built as the page is loaded by the web browser.
	The DOM is a hierarchical collection of nodes in the web browser's memory.
	You can modify the DOM using the properties and methods that are defined by the DOM Core specification.
	To display changes made to the DOM, you must refresh the web page.

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Question 2 (1 point)

The nodes in the Document Object Model

Question 2 options:

	represent all of the HTML elements, attributes, content, and comments of a web page
	represent just the HTML elements, attributes, and content of a web page
	represent just the HTML elements and attributes of a web page
	represent just the HTML elements and content of a web page

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Question 3 (1 point)

Which property would you use to get the node that contains the content for an element?

Question 3 options:

	nextNode
	textNode
	firstChild
	nextChild

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Question 4 (1 point)

Which property of a text node would you use to set the value of that node?

Question 4 options:

	message
	text
	value
	nodeValue

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Question 5 (1 point)

The childNodes property of the Node interface

Question 5 options:

	returns the text thats stored in the first child node
	returns an array of Node objects that represent the child nodes of a node
	returns an array of String objects that contain the text thats stored in each child node
	returns a null value if the node has no child nodes

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Question 6 (1 point)

What does the following code do? var userName = $("user").firstChild.nodeValue;

Question 6 options:

	It sets the text of an HTML element with user as its id attribute.
	It puts the text of an HTML element with user" as its id attribute into the userName variable.
	It replaces the text of an HTML element with userName as its id attribute with the value user.
	It puts the value of the userName variable into the HTML element with user as its id attribute.

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Question 7 (1 point)

Which method of the Document interface retrieves an array of all the elements of the specified type?

Question 7 options:

	getElementsByName()
	getElementsById()
	getElementsByTagName()
	getElementsByClassName()

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Question 8 (1 point)

Which method of the Element interface returns true if the element has the specified attribute?

Question 8 options:

	getAttribute()
	hasAttribute()
	getElementsByName()
	setAttribute()

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Question 9 (1 point)

What does the following code do, assuming that the element with the id image_list contains a list of images and that the current value of the class attribute that element is show? var list = document.getElementById("image_list"); list.setAttribute("class", "large");

Question 9 options:

	It replaces the current value of the class attribute for the element with the id of image_list with the value large.
	It adds the class named large to the current value of the class attribute for the element with the id of image_list.
	It adds the class named large to each image in the list with the id of image_list.
	None of the above.

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Question 10 (1 point)

How would you rewrite the statement that follows that uses the DOM Core specification to use the DOM HTML specification? imageElement.getAttribute(src);

Question 10 options:

	var newImage = img.src;
	imageElement.setAttribute(src);
	imageElement.src;
	imageElement.img.src;

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Question 11 (1 point)

Which of the following statements about the DOM HTML specification is NOT true?

Question 11 options:

	It provides properties that make it easier to work with HTML elements.
	Its properties provide new functionality.
	It is composed of several interfaces that describe the properties and methods of an object type.
	The HTML specification interfaces inherit properties and methods from other interfaces.

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Question 12 (1 point)

The opening tag in a form element should include

Question 12 options:

	an action attribute that specifies the file on the web server that will process the data that is submitted
	a method attribute that specifies the HTTP method to be used for sending the form to the web server
	a name attribute if the form will be referred to by client-side or server-side code
	all of the above

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Question 13 (1 point)

Which of the following statements about radio buttons is NOT true?

Question 13 options:

	A user can select more than one radio button in a group.
	Each radio button in a group must have the same name attribute.
	Each radio button in a group must have a unique id attribute.
	All of the above.

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