Question 1

A stereo button is an input control that allows the user to select any number of options from a set of options.

Accepted Answer

A stereo button is not an input control for selecting any number of options; a checkbox serves that purpose. A stereo button typically refers to a control related to audio systems, not to selection mechanisms in user interfaces.

Question 2

Returning a value means that whenever any other function calls this function,its name is essentially replaced by the value it returns.

Accepted Answer

When a function returns a value, it means that it evaluates to that value and can be used in the calling function as that value. So, the name of the function is replaced by the value it returns in the expression.

Question 3

When the server receives the form data,it is processed by another program that is typically written in ASP,JSP,PHP,or some other ____ scripting/programming language.

Accepted Answer

The form data is processed on the server-side by another program written in a server-side scripting/programming language such as ASP, JSP, PHP, etc. Client-side scripting/programming languages such as JavaScript are used to enhance interactivity and validation on the client-side, but the processing of form data happens on the server-side. Form-specific and browser-specific are not relevant to this process.

Question 4

JavaScript statements can use a single equal sign ( = )or two equal signs ( == ).

Accepted Answer

JavaScript statements can use a single equal sign ( = ) for assignment and two equal signs ( == ) for comparison.

Question 5

In addition to using the Backspace or Delete key to correct mistakes,it is customary for Web page designers to include some type of clear ____ that allows the user to erase all form entries with a single click and start over.

Accepted Answer

The clear button is specifically designed for erasing all form entries with a single click and starting over, making it the best choice for this scenario. The other options, such as wizard or shortcut, do not necessarily have this specific function.

Question 6

For many years,the C and C++ languages have been criticized because they allow the programmer to easily confuse the assignment operator with the comparison operator.____________________

Accepted Answer

This is true. The assignment operator (=) and the comparison operator (==) have similar appearances, which can lead to mistakes in the code if the programmer accidentally uses the wrong one.

Question 7

Server-side script looks a lot like JavaScript code,but it is processed in a very different fashion.

Accepted Answer

The answer of Server-side script looks a lot like JavaScript...

Question 8

JavaScript is capable of sending information to another location.This data transfer normally travels through a(n)HTML connection,eventually arriving at a Web server somewhere.____________________

Accepted Answer

HTTP

Question 9

If the user forgets to fill out a portion of a form,it is an easy task for JavaScript to detect the absence of required data and alert the user accordingly.

Accepted Answer

JavaScript can be used to detect any missing or invalid data in a form and prompt the user to fill out the required information.

Question 10

Server-script programs are capable of many different functions,but they are most frequently used to update a transaction system.____________________

Accepted Answer

database

Question 11

Practically every business that provides its customers with electronic forms that collect data has the need to ____ the data to ensure that customers have entered appropriate and complete information.

Accepted Answer

"Validate" means to check the accuracy and completeness of something, which is exactly what businesses need to do with electronic forms to ensure that customers have entered appropriate and complete information. Scanning, correcting, and processing may all be steps involved in the validation process, but none of them accurately captures the main goal of ensuring the accuracy and completeness of the data.

Question 12

There are several JavaScript events that can be used to add some "intelligence" to simple HTML form components.

Accepted Answer

JavaScript events such as onchange, onfocus, onblur, onclick, etc. can be used to add dynamic behavior to HTML form components like text inputs, select boxes, checkboxes, radio buttons, etc.

Question 13

The NOT operator is most commonly used when the programmer wants to test for a true condition.

Accepted Answer

The NOT operator is used to negate a condition, meaning it will return the opposite of the condition being tested. Therefore, it is most commonly used when a programmer wants to test for a false condition.

Question 14

Returning a value means that whenever any other function calls this function (such as the doSubmit()function),its name is essentially replaced by the value it returns.____________________

Accepted Answer

When a function returns a value, that value becomes the result of the function call, and can be used wherever the function call would be used. So, returning a value means that the function can provide a result that can be used by other functions or code in the program. Therefore, the statement "its name is essentially replaced by the value it returns" is true.

Question 15

To create an effective order form,you must first define its appearance on the Web page by using the appropriate JavaScript tags.

Accepted Answer

The appearance of an order form is defined using HTML and CSS, not JavaScript tags. JavaScript is used for interactivity and functionality within the form.

Question 16

To validate the contents of a text field,the program checks the contents of the object's name property to see if it contains an empty string.____________________

Accepted Answer

value

Question 17

You name each of the interactive objects in an HTML form (also called ____)so that they can be referenced within JavaScript code.

Accepted Answer

The correct term to refer to interactive objects in an HTML form is "components", also known as form controls or form elements. These components can include input fields, buttons, dropdown menus, checkboxes, and more. Properly naming each component allows them to be referenced and manipulated in JavaScript code.

Question 18

A meaningless sequence of gibberish or cryptic symbols can be a string,and there is virtually no limit to the length of a string.

Accepted Answer

A string can be any sequence of characters, including gibberish or cryptic symbols, and can be of any length. Therefore, there is virtually no limit to the length of a string.

Question 19

Like C,C++,and Java,JavaScript gives you the ability to invert the value of a logical variable with the NO operator (&).

Accepted Answer

In JavaScript, the logical NOT operator used to invert the value of a variable is the exclamation mark (!), not the ampersand (&).

Question 20

A ____ button is an input control that allows the user to select just one option from a set of options.

Accepted Answer

A radio button allows the user to select just one option from a set of options, similar to how a radio allows the user to select one station at a time. The other options (television, choice, choose) do not specifically refer to this type of input control.

Quiz 8: Creating Forms With Javascript