Chapter 1 - intro to javascript

Question 1

Although JavaScript is considered a programming language, it is also a critical part of web page design and authoring

Answer 1

True

Question 2

Like HTML, XHTML is not case sensitive.

Answer 2

False

Question 3

You can place script elements in either the document head or in the document body

Answer 3

True

Question 4

JavaScript code is always stored in an external file separate from the HTML or XHTML code for a web document

Answer 4

False

Question 5

Elements that do not require a closing tag are called empty elements

Answer 5

True

Question 6

_____ can turn static documents into applications such as games or calculators

Answer 6

JavaScript

Question 7

______ was established in 1994 at MIT to oversee the development of web technology standards

Answer 7

The W3C

Question 8

An HTML document is a text document that contains codes called _____

Answer 8

Tags

Question 9

In the client/server system, one of the primary roles of the client, or front end, is to _____

Answer 9

Present an interface to the user

Question 10

A system consisting of a client and server is known as a ____ system

Answer 10

Two-tier

Question 11

On client/server systems, heavy processing, such as calculations, usually takes place in the ____

Answer 11

Server

Question 12

A three tier, or multi tier, client/server system consists of three distinct pieces : These are _____

Answer 12

The client tier
The processing tier
The data storage tier

Question 13

Some of the more popular server-side-scripting languages include_____

Answer 13

PHP
ASP.NET
PYTHON

Question 14

_____ refers to programming using a scripting language that is executed from a web server

Answer 14

Server-side scripting

Question 15

When a client requests a server side script , a client will never see the server side script only the ____ that the web server software returns from the script

Answer 15

HTML

Question 16

An object is ___ that can be treated as an individual unit or component

Answer 16

Programming code and data

Question 17

The procedures associated with an object are called _____

Answer 17

Methods

Question 18

___ are lines of code that are not processed by browsers , which you use to add notes about your code

Answer 18

Comments

Question 19

A ___ comment occupies only a single line or part of a line

Answer 19

Line

Question 20

A ___ comment hides multiple lines of code

Answer 20

Block

Question 21

Which keyword do you use to create a variable?

Answer 21

var

Question 22

Variables and literals contained in an expression are known as _____

Answer 22

Operands

Question 23

Symbols such as + and * used in expressions to manipulate operands are known as ____

Answer 23

Operators

Question 24

Which method do you use to reference an element on a web page in a script?

Answer 24

getElementById()

Question 25

Which method displays a dialog box with an okay button?

Answer 25

alert()

Question 26

Special words that are part of the JavaScript language syntax and that can’t be used as a variable names are known as ____

Answer 26

Reserved words

Question 27

A document on the web is called a web page and is identified by a unique address called the _____

Answer 27

URL

Question 28

When you assign a value to a variable, you ur an equal sign, which is also called an ______ operator

Answer 28

Assignment

Question 29

When an event occurs, your script executed any code that responds to that specific event on that specific element. This code is known as the ____

Answer 29

Event handler

Question 30

JavaScript source filed that store especially useful generic scripts used on many different website are known as ____

Answer 30

Libraries

Question 31

A ___ is a specific circumstance that is monitored by JavaScript and that your script can respond to in some way

Answer 31

Event