Deck 7: Using Images With Javascript

Question 1

The names for JavaScript objects,variables,and functions are not case-sensitive.

Answer 1

False

Question 2

A(n)____ banner is a sequence of graphic images that are displayed one after another with a small pause between each image.

A) intermittent
B) random
C) cycling
D) sequenced

Answer 2

C

Question 3

Array indices can contain floating-point numbers.

Answer 3

False

Question 4

When working with a MouseOver event,after the Web page is displayed on the screen,the browser continuously monitors the position of the mouse pointer.

Question 5

A(n)array is a collection of similar objects that can be accessed by means of a variable name and an index.____________________

Question 6

If you want to let the user decide when to have an image on a Web page change,use a cycling banner.

Question 7

A hyperlink rollover is triggered when the user moves the mouse pointer over ____.

A) a hyperlink
B) an image
C) a border
D) any text

Question 8

Arrays are available in only a few modern computer languages.

Question 9

A function is nothing more than a segment of JavaScript code that can be invoked or called.____________________

Question 10

A JavaScript variable is a name that is assigned to a literal value or to an object.

Question 11

Allowing the user to change the image shown by clicking his or her choice of Web page objects constitutes an electronic ____.

A) image display
B) image show
C) slide display
D) slide show

Question 12

Methods are written by the programmer and may contain any number of JavaScript statements,including calls to JavaScript methods and other functions.

Question 13

There is really no difference between a method and a function,except that functions have already been defined as part of the objects that make up the JavaScript programming environment.____________________

Question 14

The ____ event is generated whenever the user moves the mouse pointer over a particular object.

A) onMouseOut
B) onMouseOver
C) goMouseOut
D) goMouseOver

Question 15

Events are a response to the occurrence of some specific condition.Some of these conditions are generated by the Web browser software,but most of them are caused by the user performing some action.

Question 16

Arrays were invented to help programmers access a potentially large number of data elements with a single variable name.

Question 17

An event can be a system-level response to an action such as moving the mouse,clicking on a button,or even selecting a block of text on the screen.

Question 18

The JavaScript method random(),which is part of the Number object,is guaranteed to return a real number that is greater than or equal to 0.0 and less than 1.0.____________________

Question 19

The ____()method of the Math object eliminates the decimal part of the resulting number.

A) decimal
B) floor
C) roof
D) number

Question 20

When a graphic is defined as a hyperlink,the browser displays the image with a circular border around it.____________________

Question 21

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

A) variable
B) figure
C) digit
D) index

Question 22

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

A) onChange
B) onDifference
C) onNew
D) onAction

Question 23

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

Question 24

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.

Question 25

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

A) onMouseOut
B) onMouseOver
C) goMouseOut
D) goMouseOver

Question 26

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

Question 27

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

Question 28

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

A) onMemory
B) onUnload
C) onPage
D) onHistory

Question 29

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

A) function
B) method
C) array
D) event

Question 30

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

A) neutral
B) standard
C) entity
D) entrance

Question 31

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

A) translator
B) browser object
C) user object
D) interpreter

Question 32

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()

Question 33

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

A) onForm
B) onHTML
C) onHTMLform
D) onSubmit

Question 34

Script piracy is ____.

A) unethical
B)illegal
C)both a.and b.
D)neither a.nor b.

Question 35

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

Question 36

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

A) functions
B) methods
C) arrays
D) events

Question 37

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

Question 38

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

A) onMouseClick
B) onClick
C) onChoose
D) onMouse

Question 39

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

Question 40

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.

Question 41

Given this snippet of code
var imgArray = new Array(4);
the ____________________ name is imgArray.

Question 42

Cycling banners are also known as ____________________ banners.

Question 43

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.onSelect
b.onBlur
c.onLoad
d.onFocus
e.onAbort
The user deactivated an object.

Question 44

A real number (also called a(n)____________________-point number)is a numerical value that includes a decimal portion.

Question 45

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.onSelect
b.onBlur
c.onLoad
d.onFocus
e.onAbort
The user activated an object.

Question 46

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.onSelect
b.onBlur
c.onLoad
d.onFocus
e.onAbort
The user selected (highlighted)the contents of an object.

Question 47

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.onSelect
b.onBlur
c.onLoad
d.onFocus
e.onAbort
The Web browser finished loading a page.

Question 48

The term ____________________ means to subtract 1 from the current value of a variable.

Question 49

MATCHING
Identify the letter of the choice that best matches the phrase or definition.
a.onSelect
b.onBlur
c.onLoad
d.onFocus
e.onAbort
The user aborted the loading of a Web page.

Question 50

The lesson stated that script piracy is just as unethical as picture piracy.If there were degrees of script piracy,what would be an example of a less damaging,more innocent copying of a script? What would be an example of a very damaging,unethical copying of a script? Do you think everyone who copies a script is equally guilty? Why or why not?