Question 1 Although JavaScript is considered a programming language, it is also

Question

Question 1

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

True

False
.

3.35 points  

Question 2

Like HTML, XHTML is not case sensitive.

True

False
.

3.35 points  

Question 3

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

True

False
.

3.35 points  

Question 4

A comparison operator is used to compare two operands and determine if one numeric value is greater than another.

True

False
.

3.35 points  

Question 5

In JavaScript code, you use the words yes and no to indicate Boolean values.

True

False
.

3.35 points  

Question 6

Parentheses are used with expressions to change the associativity with which individual operations in an expression are evaluated.

True

False
.

3.35 points  

Question 7

You can think of an array as a collection of variables contained within a single variable.

True

False
.

3.35 points  

Question 8

An if statement keeps repeating until its conditional expression evaluates to false.

True

False
.

3.35 points  

Question 9

A break statement restarts a loop with a new iteration?

True

False
.

3.35 points  

Question 10

Syntax refers to the order in which various parts of a program run, or execute.?3?

True

False
.

3.35 points  

Question 11

An HTML document is a text document that contains codes called ____.

a.
styles

b.
rules

c.
elements

d.
tags

.

3.35 points  

Question 12

The procedures associated with an object are called ____.

a.
methods

b.
functions

c.
attributes

d.
processes

.

3.35 points  

Question 13

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

a.
write()

b.
onclick()

c.
getElementById()

d.
alert()

.

3.35 points  

Question 14

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

a.
methods

b.
comments

c.
variables

d.
properties

.

3.35 points  

Question 15

Which method displays a dialog box with an OK button?

a.
onclick()

b.
alert()

c.
getElementById()

d.
write()

.

3.35 points  

Question 16

A ____ variable is one that is declared outside a function and is available to all parts of your program.

a.
scoped

b.
limited

c.
local

d.
global

.

3.35 points  

Question 17

Data types that can be assigned only a single value are called ____ types.

a.
Boolean

b.
numeric

c.
primitive

d.
null

.

3.35 points  

Question 18

Programming languages that require you to declare the data types of variables are called ____ typed programming languages.

a.
loosely

b.
strongly

c.
static

d.
dynamic

.

3.35 points  

Question 19

JavaScript is a ____ programming language.

a.
static typed

b.
loosely typed

c.
strongly typed

d.
numeric typed

.

3.35 points  

Question 20

You can use the compound ____ to combine two strings.

a.
declaration operator

b.
assignment operator

c.
value separator

d.
equals comparison

.

3.35 points  

Question 21

The strict equal operator is ____.

a.
=

b.
!=

c.
===

d.
==

.

3.35 points  

Question 22

The And operator is ____.

a.
!=

b.
===

c.
&&

d.
||

.

3.35 points  

Question 23

Each piece of data contained in an array is called a(n) ____.

a.
index

b.
element

c.
range

d.
column

.

3.35 points  

Question 24

One of the simplest types of loop statements is the ____ statement, which repeats a statement or series of statements as long as a given conditional expression evaluates to a truthy value.

a.
switch

b.
if

c.
while

d.
continue

.

3.35 points  

Question 25

Unlike the while statement, the statements in a ____ statement always execute once, before a conditional expression is evaluated.

a.
do/until

b.
do/while

c.
do/continue

d.
do/using

.

3.35 points  

Question 26

Which of the following references the second element in the newsSections array?

a.
newsSections(1)

b.
newsSections[1]

c.
newsSections[2]

d.
newsSections(2)

.

3.35 points  

Question 27

Which method returns a collection of references to all instances of a certain element in an HTML document?

a.
getElementsByClassName()

b.
getElementById()

c.
getElementsByTagName()

d.
getElementsByName()

.

3.35 points  

Question 28

A ____ error occurs when the interpreter fails to recognize code.

a.
logic

b.
run-time

c.
syntax

d.
web

.

3.35 points  

Question 29

An infinite loop is an example of a(n) ____ error?

a.
user

b.
syntax

c.
run-time

d.
logic

.

3.35 points  

Question 30

The ____ method is used in JavaScript to execute code after a specific amount of time has elapsed.

a.
clearInterval()

b.
startTimeout()

c.
setTimeout()

d.
clearTimeout()

.

  
     .                 

Explanation / Answer

1 : True
2 : False
3 : True
4 : True
5 : False
6 : True
7 : True
8 : False
9 : False
10 : False
11 : d
12 : a
13 : c
14 : b
15 : b
16 : d
17 : c
18 : b
19 : b
20 : b
21 : c
22 : c
23 : b
24 : c
25 : b
26 : c
27 : a. getElementsByClassName(): It Returns a NodeList containing all elements with the specified class name

       b. getElementById(): Returns the element that has the ID attribute with the specified value

       c. getElementsByTagName(): Returns a NodeList containing all elements with the specified tag name

       d. getElementsByName(): Returns a NodeList containing all elements with a specified name

       Therefore, the answer is d.

28 : c
29 : d
30 : c

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