Question 1

A(n)____ is an integer variable that identifies which element of an array is being referenced.
A) variable
B) figure
C) digit
D) index

Accepted Answer

An index is an integer variable that identifies which element of an array is being referenced. It is used to access data stored in an array. Choices A, B, and C are not specific enough to identify this concept.

Question 2

The ____ event is triggered when the user changes the object in some way.
A) onChange
B) onDifference
C) onNew
D) onAction

Accepted Answer

The onChange event is typically used in user interface design to detect when a user has changed the value of an input element, such as a textbox, checkbox, or dropdown menu. This event is triggered whenever the value of the element is modified, either by the user or through code.

Question 3

Case 7-2
Ryan is working with arrays in JavaScript for the first time. He is creating a cycling banner ad for his bicycle repair shop.
-Ryan's ad includes four images so he creates a four-element array.The correct indices for a four-element array in JavaScript are ____.
A) 0,1,2,and 3
B) 1,2,3,and 4
C) 2,4,6,8
D) -1,0,+1,+2

Accepted Answer

In JavaScript arrays, the index of the first element is 0, not 1. Therefore, a four-element array would have indices 0, 1, 2, and 3. Option B has indices starting at 1 and ending at 4, which is one more than the number of elements in the array. Option C has indices that are not in sequence and are larger than the number of elements. Option D has negative indices which are not applicable in this case.

Question 4

Case 7-1
Trina is using JavaScript to define some hyperlinks on the page of her new Web site announcing the concert schedule of her band, The Tommies.
-Trina decides to add several hyperlink and image rollovers to her Web site.Both types of rollovers will take the visitor to an upcoming events page.Which of the following statements are true of the code she will write?
A) The code for an image rollover and hyperlink rollover are very similar.
B) A hyperlink rollover is triggered when the user moves the mouse over an image.
C) An image rollover is triggered when the user moves the mouse over text.
D) There is no way to remove the border from an image rollover.

Accepted Answer

The code for an image rollover and hyperlink rollover may have some similarities, but they are not exactly the same. Both rollovers are triggered when the user moves the mouse, but an image rollover is triggered when the mouse moves over an image, while a hyperlink rollover is triggered when the mouse moves over a hyperlink. It is possible to remove the border from an image rollover with CSS.

Question 5

The ____ event is generated when the user moves the mouse pointer off of the object.
A) onMouseOut
B) onMouseOver
C) goMouseOut
D) goMouseOver

Accepted Answer

The onMouseOut event is specifically designed to be triggered when the mouse pointer moves off of an element. B) onMouseOver is triggered when the mouse pointer moves over an element, which is the opposite of what we want in this case. C) goMouseOut and D) goMouseOver are not standard event names in web development and do not exist in HTML or JavaScript.

Question 6

A(n)____________________ is a system-level response to the occurrence of some specific condition.

Accepted Answer

The answer of A(n)____________________ is a system-level response to the...

Question 7

Case 7-2
Ryan is working with arrays in JavaScript for the first time. He is creating a cycling banner ad for his bicycle repair shop.
-Ryan's co-worker,Pete,is experienced in the Pascal language,and had mistakenly written the ad in JavaScript using the same one-based indexing method as Pascal.In Pascal,a four-element array would have the indices ____.
A) 0,1,2,and 3
B) 1,2,3,and 4
C) 2,4,6,8
D) -1,0 +1,+2

Accepted Answer

In Pascal, arrays are one-based by default, meaning the first element is at index 1, not 0 as in many other programming languages like JavaScript. Therefore, a four-element array in Pascal would have the indices 1, 2, 3, and 4.

Question 8

The ____ event is triggered when the Web browser unloaded a page from memory.
A) onMemory
B) onUnload
C) onPage
D) onHistory

Accepted Answer

The onUnload event is triggered when the Web browser unloads a page from memory. This can happen when the user leaves the page or exits the browser.

Question 9

You can use JavaScript to detect when the onMouseOver ____ occurs and then take some appropriate action.
A) function
B) method
C) array
D) event

Accepted Answer

The onMouseOver is an event that occurs when the mouse cursor moves over an element on the webpage. JavaScript can be used to detect when this event occurs and then trigger some appropriate action. Therefore, the best choice in this scenario is option D, which refers to an event.

Question 10

The symbol for a "non-breaking space" is called a(n)____ code.
A) neutral
B) standard
C) entity
D) entrance

Accepted Answer

The symbol for a "non-breaking space" is represented by an entity code, which is a code that represents a specific character or symbol in HTML and other programming languages. Entity codes are used to ensure that characters such as spaces and special characters are displayed correctly on web pages, regardless of the user's browser or computer system.

Question 11

The onError event is triggered when the JavaScript ____ encounters a script error.
A) translator
B) browser object
C) user object
D) interpreter

Accepted Answer

The onError event is triggered when the JavaScript interpreter encounters a script error.

Question 12

FIGURE 7-1
 
-Given the code snippet below,Figure 7-1 above illustrates the ____ event. < a href="webpage.html" onMouseOut="turnBlue()" onMouseOver="turnRed()">
A) onMouseOut
B) onMouseOver
C) turnBlue()
D) turnRed()

Accepted Answer

The answer of FIGURE 7-1
 
-Given the code snippet below,Figure...

Question 13

The ____ event is triggered when the user submits an HTML form.
A) onForm
B) onHTML
C) onHTMLform
D) onSubmit

Accepted Answer

The onSubmit event is triggered when the user submits an HTML form, making it the appropriate choice for this question. The other options provided - onForm, onHTML, and onHTMLform - are not valid event names in HTML, and thus are incorrect.

Question 14

Script piracy is ____.
A) unethical
B)illegal
C)both a.and b.
D)neither a.nor b.

Accepted Answer

Script piracy involves using someone else's written work without their permission or compensation, which is both unethical and illegal. It is a violation of copyright law and can result in legal consequences. Therefore, both choices A and B are correct.

Question 15

Based on the examples in the lesson,by utilizing ____ ,you can implement a successful cycling banner.
A) one JavaScript event
B) one JavaScript function
C) one JavaScript event and one JavaScript function
D) two JavaScript events

Accepted Answer

The successful cycling banner example in the lesson utilizes both a JavaScript event (setInterval function for timed cycling) and a JavaScript function (to change the banner image). Therefore, option C is the best choice.

Question 16

Both document.write()and window.alert()are examples of ____.
A) functions
B) methods
C) arrays
D) events

Accepted Answer

Both document.write() and window.alert() are methods in JavaScript. A method is a function that is associated with an object. In this case, document and window are both objects in the browser's JavaScript environment, and write() and alert() are methods that can be called on those objects to perform certain actions.

Question 17

FIGURE 7-2 -Referring to Figure 7-2 above,it is important that the < script> and < /script> tags ____.This ensures that the Web browser processes the JavaScript code before it begins to display the contents of the document on the screen. A) are below the < title> tags B) are in the header section C) contain functions D) contain variables

Accepted Answer

The < script> and < /script> tags should be placed within the header section of the HTML document to ensure that the JavaScript code is processed before the contents of the document are displayed on the screen.

Question 18

The ____ event is triggered when the user clicks the mouse pointer on an object.
A) onMouseClick
B) onClick
C) onChoose
D) onMouse

Accepted Answer

The onClick event is triggered when the user clicks the mouse pointer on an object. The other options such as onMouseClick, onChoose, and onMouse are not valid event names in web development.

Question 19

If the default border of an image hyperlink detracts from the appearance of the page,you can adjust its size with an image attribute called ____.
A) border
B) link
C) frame
D) default

Accepted Answer

The image attribute called "border" is used to adjust the size of the border of an image hyperlink. This can help improve the appearance of the page and make the hyperlink blend in better with the surrounding content. Choices B, C, and D are not relevant to adjusting the border size of an image hyperlink.

Question 20

Case 7-1
Trina is using JavaScript to define some hyperlinks on the page of her new Web site announcing the concert schedule of her band, The Tommies.
-On one of the pages,Trina has an image of a red guitar defined as an image rollover.Given a browser's default settings,how will people visiting her Web site know that this image is a hyperlink?
A) The text underneath the image hyperlink will be blue and underlined.
B) The actual image will have a blue rectangular border around it.
C) The text underneath the image hyperlink will be red and underlined.
D) The actual image will have a red rectangular border around it.

Accepted Answer

By default, browsers display a blue rectangular border around image hyperlinks to indicate they are clickable.

Quiz 7: Using Images With Javascript

A(n) ____ is an integer variable that identifies which element of an array is being referenced.

The ____ event is triggered when the user changes the object in some way.

Case 7-2 Ryan is working with arrays in JavaScript for the first time. He is creating a cycling banner ad for his bicycle repair shop. -Ryan's ad includes four images so he creates a four-element array.The correct indices for a four-element array in JavaScript are ____.

The ____ event is generated when the user moves the mouse pointer off of the object.

A(n)____________________ is a system-level response to the occurrence of some specific condition.

The ____ event is triggered when the Web browser unloaded a page from memory.

You can use JavaScript to detect when the onMouseOver ____ occurs and then take some appropriate action.

The symbol for a "non-breaking space" is called a(n) ____ code.

The onError event is triggered when the JavaScript ____ encounters a script error.

FIGURE 7-1 -Given the code snippet below,Figure 7-1 above illustrates the ____ event. < a href="webpage.html" onMouseOut="turnBlue() " onMouseOver="turnRed() ">

The ____ event is triggered when the user submits an HTML form.

Script piracy is ____.

Based on the examples in the lesson,by utilizing ____ ,you can implement a successful cycling banner.

Both document.write() and window.alert() are examples of ____.

FIGURE 7-2 -Referring to Figure 7-2 above,it is important that the < script> and < /script> tags ____.This ensures that the Web browser processes the JavaScript code before it begins to display the contents of the document on the screen.

The ____ event is triggered when the user clicks the mouse pointer on an object.

If the default border of an image hyperlink detracts from the appearance of the page,you can adjust its size with an image attribute called ____.