Question 1

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

Accepted Answer

JavaScript is case-sensitive, meaning that names for objects, variables, and functions must be used consistently with regard to uppercase and lowercase letters.

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

Accepted Answer

A cycling banner displays a sequence of images that cycle through in a particular order, with a small pause between each image. This is a common feature of website banners and ads, where multiple images are displayed in a single location to convey a message or promote a product or service.

Question 3

Array indices can contain floating-point numbers.

Accepted Answer

Array indices must be integers. They represent the position of an element in the array, and there cannot be a decimal position in between two elements.

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.

Accepted Answer

After the Web page is displayed, the browser continuously monitors the position of the mouse pointer for any changes and triggers the MouseOver event when the pointer is moved over an element on the page.

Question 5

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

Accepted Answer

This statement is true.

Question 6

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

Accepted Answer

A cycling banner automatically rotates images, not allowing user control over when an image changes. For user-controlled image changes, interactive elements like buttons should be used.

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

Accepted Answer

A hyperlink rollover is specifically associated with moving the mouse pointer over a hyperlink. While rollover effects can be applied to other elements such as images or text, the question is asking specifically about a hyperlink rollover.

Question 8

Arrays are available in only a few modern computer languages.

Accepted Answer

Arrays are available in many modern computer languages, including Java, Python, JavaScript, C#, Ruby, and more.

Question 9

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

Accepted Answer

A function in JavaScript is a block of code that is designed to perform a particular task. It can be called or invoked multiple times with different arguments to produce different results.

Question 10

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

Accepted Answer

Variables in JavaScript are used to store values, which can be literal or objects. These values can then be manipulated or used in various ways within the code.

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

Accepted Answer

Allowing the user to change the image shown by clicking his or her choice of Web page objects is a common feature in a slide show, where multiple images are displayed in sequence. Therefore, option D, slide show, is the most appropriate answer. Option A, image display, is too general and may refer to any instance of an image appearing on a web page. Option B, image show, is not a commonly used term, and option C, slide display, is also not an established term in web development.

Question 12

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

Accepted Answer

The answer of Methods are written by the programmer and...

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.____________________

Accepted Answer

methods
method

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

Accepted Answer

The onMouseOver event is triggered when the user moves the mouse pointer over a particular object. Option A (onMouseOut) is triggered when the mouse pointer moves out of an object, while options C (goMouseOut) and D (goMouseOver) are not valid event names.

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.

Accepted Answer

Events can be triggered by both the Web browser software and the user's actions. However, most events are usually caused by the user's actions such as clicking, typing, scrolling, or hovering over an element.

Question 16

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

Accepted Answer

Arrays allow programmers to store and access multiple values using a single variable name, making it easier and more efficient to work with large amounts of data.

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.

Accepted Answer

This is true. Events are actions or occurrences that happen in response to user interaction or system processes. Examples of events include clicking a button, scrolling the mouse wheel, or submitting a form. When an event occurs, the system can respond by executing a function or triggering some other process.

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.____________________

Accepted Answer

Math

Question 19

The ____()method of the Math object eliminates the decimal part of the resulting number.
A) decimal
B) floor
C) roof
D) number

Accepted Answer

The floor() method of the Math object is used to round down a number to the nearest integer. It eliminates the decimal part of the resulting number.

Question 20

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

Accepted Answer

rectangular

Quiz 7: Using Images With Javascript