Question 1

In CSS, the rotate(30deg) method rotates the element _____.
A) 30 degrees clockwise
B) 30 degrees counter-clockwise
C) 90 degrees clockwise
D) 180 degrees counter-clockwise

Accepted Answer

The rotate(30deg) method rotates the element 30 degrees clockwise.

Question 2

Efficient use of JavaScript can significantly improve and enrich the user experience.

Accepted Answer

The answer of Efficient use of JavaScript can significantly improve...

Question 3

In JavaScript, _____ must have a unique name and must follow the same naming conventions as user-defined functions.
A) comments
B) arguments
C) variables
D) elements

Accepted Answer

Variables in JavaScript must have a unique name and follow the same naming conventions as user-defined functions, such as starting with a letter, underscore, or dollar sign, and not using reserved keywords.

Question 4

A parameter or _____ is a value given to a method.
A) argument
B) element
C) function
D) event

Accepted Answer

A parameter is a value that is passed into a method or function when it is called, in order to customize its behavior. This value is given as an argument to the function. Therefore, the best choice is A, argument.

Question 5

A marketing deal was struck with Sun Microsystems to adopt the Java name and change LiveScript to _____.
A) JavaScript
B) Windows
C) MacOS
D) Google

Accepted Answer

The marketing deal between Sun Microsystems and Netscape Communications Corporation resulted in LiveScript being renamed to JavaScript, with the intention of leveraging the popularity of Sun's Java programming language.

Question 6

JavaScript withholds interactivity between the webpage and the user.

Accepted Answer

JavaScript can be used to add interactive elements to a webpage, such as form validation, animations, and dynamic content updates in response to user actions.

Question 7

Which DOM method returns the first HTML element with the specified CSS selector?
A) querySelector( )
B) querySelectorAll( )
C) getElementsByName( )
D) getElementsByTagName( )

Accepted Answer

The querySelector() method returns the first element that matches the specified CSS selector. It is the best choice for this task as it directly returns the first matching element. The other options (querySelectorAll(), getElementsByName(), and getElementsByTagName()) return a NodeList of elements which would require additional steps to access the first matching element.

Question 8

Identify the code that shows how an object name and its property are separated.
A) browser=chrome.appName
B) browser=chrome*appName
C) browser=chrome$appName
D) browser=chrome#appName

Accepted Answer

In option A, the dot operator (.) is used to separate the object name ("chrome") and its property ("appName").

Question 9

A(n) _____ is a set of JavaScript statements that perform a specific task.
A) function
B) element
C) argument
D) property

Accepted Answer

A function is a block of code designed to perform a specific task. It is a reusable piece of code that can be called multiple times throughout a program.

Question 10

JavaScript uses _____ to store values temporarily in internal memory.
A) arguments
B) elements
C) functions
D) variables

Accepted Answer

JavaScript uses variables to store values temporarily in internal memory. Variables are containers that can hold different types of values, such as numbers, strings, or booleans. They are declared using the var, let, or const keyword, and can be reassigned or updated as needed throughout the program.

Question 11

A(n) _____ is how JavaScript associates an action with a function.
A) attribute
B) parameter
C) anchor element
D) event handler

Accepted Answer

An event handler is a function in JavaScript that is associated with an event. It is triggered when the event occurs, such as when a button is clicked or a key is pressed. This allows developers to add interactivity and functionality to their web pages.

Question 12

Which CSS transform property value is used to  resize an element?
A) translate( )
B) scale( )
C) trim ()
D) matrix( )

Accepted Answer

The scale() function is used to resize an element in CSS. It allows you to increase or decrease the size of an element along the x-axis and y-axis. This function takes a value as an argument, where 1 is the original size, greater than 1 is increased size, and less than 1 is decreased size.

Question 13

Roger is writing a code and he has been advised by his mentor to provide comments in the code. What is the format that Roger must follow to write comments in JavaScript?
A) He must use a slash and asterisk for multiline comments.
B) He must use a single slash for a one-line comment.
C) He must use double slashes and a period for multiline comments.
D) He must use a period and asterisk for a one-line comment.

Accepted Answer

In JavaScript, multiline comments are denoted by a slash followed by an asterisk /* and end with an asterisk followed by a slash */. One-line comments are denoted by double forward slashes //. Therefore, option A is the correct format for writing comments in JavaScript.

Question 14

Which CSS transform property value rotates an element a specified number of degrees clockwise or counter-clockwise?
A) matrix( )
B) skew( )
C) translate( )
D) rotate( )

Accepted Answer

The rotate() value rotates an element a specified number of degrees clockwise or counter-clockwise.

Question 15

The _____ of JavaScript objects are attributes that describe an object's characteristics.
A) properties
B) elements
C) labels
D) placeholders

Accepted Answer

Properties are attributes that describe an object's characteristics. Elements are used in HTML to refer to specific parts of a document. Labels are used in programming to mark a position in a program or to identify a statement. Placeholders are used to hold a value until it can be replaced by a specific value.

Question 16

Which term is used for actions that an object can perform?
A) properties
B) arguments
C) methods
D) strings

Accepted Answer

Methods are actions that an object can perform in programming. Properties refer to the characteristics or attributes of an object, arguments are values passed to a method or function, and strings are a data type used for representing text.

Question 17

Roger has created a JavaScript program as an external .js file. What is the format he must follow to specify the file as an external file? A)

Accepted Answer

To specify an external JavaScript file, we use the "script" tag with the "src" attribute. The value of the "src" attribute is the file path where the external script is located. The correct format for specifying the file path is given in option A.

Question 18

Which CSS transform property value indicates a  2D transformation that accepts six values?
A) matrix( )
B) scale( )
C) translate( )
D) rotate( )

Accepted Answer

The CSS transform property value matrix() indicates a 2D transformation that accepts six values. The six values correspond to the six values of a 2x3 matrix, which allows for more complex transformations than the other options (scale(), translate(), and rotate()) that typically only accept one to three values.

Question 19

In CSS, the skew method skews the _____ of an element.
A) corners
B) sides
C) opacity
D) texture

Accepted Answer

The skew method skews the sides of an element, meaning it tilts or slants them at an angle.

Question 20

To add an animation with CSS, you create it with an _____ rule; it specifies the name of the animation as well as the animation parameters. 
A) @transform
B) @validation
C) @keyframes
D) @specification

Accepted Answer

To add an animation with CSS, you create it with a "@keyframes" rule. It specifies the name of the animation as well as the animation parameters.

Quiz 10: Creating Interactivity With Css and Javascript

In CSS, the rotate(30deg) method rotates the element _____.

Efficient use of JavaScript can significantly improve and enrich the user experience.

In JavaScript, _____ must have a unique name and must follow the same naming conventions as user-defined functions.

A parameter or _____ is a value given to a method.

A marketing deal was struck with Sun Microsystems to adopt the Java name and change LiveScript to _____.

JavaScript withholds interactivity between the webpage and the user.

Which DOM method returns the first HTML element with the specified CSS selector?

Identify the code that shows how an object name and its property are separated.

A(n) _____ is a set of JavaScript statements that perform a specific task.

JavaScript uses _____ to store values temporarily in internal memory.

A(n) _____ is how JavaScript associates an action with a function.

Which CSS transform property value is used to resize an element?

Roger is writing a code and he has been advised by his mentor to provide comments in the code. What is the format that Roger must follow to write comments in JavaScript?

Which CSS transform property value rotates an element a specified number of degrees clockwise or counter-clockwise?

The _____ of JavaScript objects are attributes that describe an object's characteristics.

Which term is used for actions that an object can perform?

Roger has created a JavaScript program as an external .js file. What is the format he must follow to specify the file as an external file?

Which CSS transform property value indicates a 2D transformation that accepts six values?

In CSS, the skew method skews the _____ of an element.

To add an animation with CSS, you create it with an _____ rule; it specifies the name of the animation as well as the animation parameters.