Practice midterm-2

Question 1 of 151

1

if you wanted a CSS rule to have all paragraphs of class
silly to be centered on the page, which CSS rule would you use?

Select one of the following:

silly { text-align: center; }
p.silly { align: center; }
p
p.silly { text-align: center; }
p < silly { align: center; }

Explanation

Question 2 of 151

1

In CSS the selector .par matches

Select one of the following:

all elements whose class is par
all elements whose id is par
all <p> elements whose id is par
all <p> elements whose class is par
all<p>elements

Explanation

Question 3 of 151

1

In PHP, what is the output of the following code
$a = 2;
$a = $a + 2;
$a++;
print $a;

Select one of the following:

8
2
5
6
4

Explanation

Question 4 of 151

1

In CSS which property is used to control the
size of the text?

Select one of the following:

font
text-style
font-style
text-size
font-size

Explanation

Question 5 of 151

1

In CSS a rule has the syntax a { b : c ; }. In this
rule the symbol a is known as a

Select one of the following:

value
parameter
Selector
property
comment

Explanation

Question 6 of 151

1

$a = 10;
$b = 5;
print '$a*$b';

Select one of the following:

10*5
50
you will get an error
$a*$b

Explanation

Question 7 of 151

1

Which of the following is a valid CSS selector ?

Select one of the following:

p { color red }
p color red
p { color: red; }
p color: red;
p.color { red; }

Explanation

Question 8 of 151

1

In PHP, what would be the output of the following code:
$a = 10;
$b = 10;
print "$a * $b";

Select one of the following:

you will get an error
100
$a * $b
10*10

Explanation

Question 9 of 151

1

Where should the reference to a style sheet be
placed in an HTML document ?

Select one of the following:

In the <head> section.
In the <style> section.
In the 'tail> section.
In the <body> section.
In the <css> section.

Explanation

Question 10 of 151

1

What is the order of priority (from highest to lowest) that styles are applied to an element?

Select one of the following:

inline style, embedded style, externally linked style, default html style
style sheet, the browser default
default html style, embedded style, inline style, externally linked style Incorrect
embedded style, inline style, externally linked style, default html style
externally linked style, embedded style, inline style, default html style
externally linked style, default html style, embedded style, inline style

Explanation

Question 11 of 151

1

In CSS, considering the CSS Box Model, would be the final width of an element with the following id?
#item {
width: 100px;
border: 5px;
margin: 5px;
padding: 0px;
}

Select one of the following:

100
110
105
120
90

Explanation

Question 12 of 151

1

In CSS the selector p matches

Select one of the following:

all <p> elements whose class is p
all elements whose id is p
all <p> elements whose id is p
all elements whose class is p
all <p> elements

Explanation

Question 13 of 151

1

The following PHP code has an error. What line is this error on?
0: $a = 10 + 1;
1: $b = "10"
2: if ($a <> $b)
3: {
4: print "Not equal";
5: }
6: else
7: {
8: $b++;
9: }

Select one of the following:

0
1
4
2

Explanation

Question 14 of 151

1

Considering the CSS box model, what is the final width of an element of this class:
.item {
width: 100px;
margin: 10px;
padding-left: 10px;
padding-right: 0px;
}

Select one of the following:

120
130
150
100

Explanation

Question 15 of 151

1

Which of the following would change the background
colour for all <h1> elements to white?

Select one of the following:

h1.all { background-color: white }
header1 { background-color: white }
.h1 { background-color: white }
h1 { background-color: white }

Explanation

Question 16 of 151

1

In CSS which property is used to control the background
color?

Select one of the following:

color
backgroung-color
background-colour
bgcolor

Explanation

Question 17 of 151

1

In CSS to apply color: red to
h1 and h2 you could use the rule(s)

Select one of the following:

h1.h2 { color : red; }
h1:h2 { color : red; }
h1, h2 { color : red; }
h1 { color : red; } h2 { color : blue; }
h1 { red : color; } h2 { red : color; }

Explanation

Question 18 of 151

1

In CSS which property is used to control the
text color of an element?

Select one of the following:

text-color
background-color
foreground-color
text-colour
color

Explanation

Question 19 of 151

1

The difference between serif and sans-serif fonts is that

Select one of the following:

serif fonts have small lines at the end of some characters while
sans-serif do not
sans-serif fonts have small lines at the end of some characters while serif do not
sans-serif fonts are monospaced while serif have variable width
serif fonts are monospaced while sans-serif have variable width
sans-serif fonts can be used without paying a royalty, while a royalty must be
paid for serif fonts

Explanation

Question 20 of 151

1

Which of the following is not a valid variable in PHP?

Select one of the following:

$1name
$name
$_name1
$name1
$Name

Explanation

Question 21 of 151

1

In PHP what is the value of $a
$s = "Hello World";
$a = $s[7];

Select one of the following:

"o"
you will get an error
"Hello"
"W"
7

Explanation

Question 22 of 151

1

In PHP, what will be the output of the following code
$a = "hello ";
$b = "world ";
$c = 10;
print $a . $c . $b ;

Select one of the following:

you will get an error
hello 10 world
10
hello world
hello

Explanation

Question 23 of 151

1

[HTML]
In PHP, what is the output of the following code:
$a = 10;
$b = "10";
if ($a == $b)
{
print "hello ";
}
print "world";

Select one of the following:

hello
world
$a
$b
hello world

Explanation

Question 24 of 151

1

In CSS the selector #p matches

Select one of the following:

all <p> elements
all elements whose class is p
all elements whose id is p
all <p> elements whose id is p
all <p> elements whose class is p

Explanation

Question 25 of 151

1

The background of a given HTML element can be manipulated with

Select one of the following:

you cannot change the background of an element
only background-image
background-color, background-image
only background-color

Explanation

Question 26 of 151

1

In CSS which property is used to control the
horizontal alignment of text in an element?

Select one of the following:

text-align
alignment
center-align
center
align

Explanation

Question 27 of 151

1

$a = 2 + 3 * 5 + 10;
print $a;

Select one of the following:

27
23510
35
20

Explanation

Question 28 of 151

1

It is possible to define CSS in

Select one of the following:

only inline
only in external style sheets and internal style sheets
only in external style sheets
only in internal style sheets
external style sheets, internal style sheets, and inline

Explanation

Question 29 of 151

1

Which of the following is the correct HTML to refer to an external style sheet style.css ?

Select one of the following:

<style "style.css\">
<link rel="stylesheet" type="text/css" href="style.css">
<style> style.css</style>
<css rel="stylesheet" type="text/css" href="style.css">
<css> style.css</css>

Explanation

Question 30 of 151

1

What does CSS stand for?

Select one of the following:

Cascading Style Sheets
Computer Style Sheets
CSS does not stand for anything
Computer Symbol Sheets
Cascading Symbols and Symptoms

Explanation

Question 31 of 151

1

In PHP what is the data type of the variable $c?
$a = "10";
$b = "20";
$c = $a * $b;

Select one of the following:

array
float
string
boolean
integer

Explanation

Question 32 of 151

1

CSS enables links to be styled differently depending on
what state they are in. To set the hover colour for a link to be white, one would
code a CSS rule

Select one of the following:

a { color : white ; hover : true ;}
a:link { color : white ; }
a { color : white ; hover-dwell : true ;}
a { hover-color : white ;}
a:hover { color : white ; }

Explanation

Question 33 of 151

1

In CSS, which property would be used to allow an image to be positioned on the right?

Select one of the following:

clear: right
float: right
align: righ
overflow: hidden

Explanation

Question 34 of 151

1

In CSS, what is the range for the R, G, B when specifying a color using rgb(R, G, B) ?

Select one of the following:

1-256
0xFFFFFF
0-255
1-100
0-1

Explanation

Question 35 of 151

1

In PHP what is the data type of the variable $c?
$a = 10;
$b = 1.238;
$c = $a * $b;

Select one of the following:

String
array
float
integer
boolean

Explanation

Question 36 of 151

1

In CSS a rule has the syntax a { b : c ; }. In this
rule the symbol a is known as a

Select one of the following:

parameter
Selector
value
comment
property

Explanation

Question 37 of 151

1

In PHP, what would be the output of the following code:
$a = 10;
$b = 10;
print "$a * $b";

Select one of the following:

100
10*10
$a*$b
you will get an error

Explanation

Question 38 of 151

1

In CSS the selector p matches

Select one of the following:

all <p> elements
all elements whose class is p
all elements whose id is p
all <p> elements whose id is p
all <p> elements whose class is p

Explanation

Question 39 of 151

1

Which of the following would change the background
colour for all <h1> elements to white?

Select one of the following:

h1.all { background-color: white }
h1 { background-color: white }
header1 { background-color: white }
.h1 { background-color: white }

Explanation

Question 40 of 151

1

In CSS which property is used to control the background
color?

Select one of the following:

colour
background-color
color-background
bgcolor
color

Explanation

Question 41 of 151

1

Which of the following is a valid CSS selector ?

Select one of the following:

p.color { red; }
p color: red;
p color red
p { color: red; }
p { color red }

Explanation

Question 42 of 151

1

Which of the following will cause you to open the link in a new tab or browser window?

Select one of the following:

<a href="http:www.cse.yorku.ca" target="_blank">
<a href="http:www.cse.yorku.ca" target="_top">
<a href="http:www.cse.yorku.ca" target="_new">
<a href="http:www.cse.yorku.ca" target="new">
<a href="http:www.cse.yorku.ca" target="/">

Explanation

Question 43 of 151

1

Which of the following HTML elements defines the title of a document?

Select one of the following:

<title text="This is a title">
<head>This is a title</head>
<title>This is a title</title>
<meta>This is a title</meta>
<html>This is a title</html>

Explanation

Question 44 of 151

1

How could you output the following text in HTML?: <p> This is an example of a paragraph tag </p> in HTML

Select one of the following:

<p> <<p>> his is an example of a paragraph tag <<\p>> in HTML </p>
<p> "<p> This is an example of a paragraph tag </p> in HTML" </p>
<p> \<p\> his is an example of a paragraph tag \</p\>" in HTML </p>
<p> <p> This is an example of an paragraph tag </p> in HTML </p>

Explanation

Question 45 of 151

1

Which of the following HTML tags are classified as empty or void tags? Choose the most complete answer

Select one of the following:

<hr>
No HTML tags are allowed to be empty or void. Incorrect
<hr>, <br> and <img>
<br> and <p>
<hr>, <br> and <p>

Explanation

Question 46 of 151

1

The syntax of HTML requires that the name and value of an element's attribute be separated by:

Select one of the following:

an equal sign.
a semicolon.
a tab.
one or more spaces.
a comma.

Explanation

Question 47 of 151

1

Every HTML element has a parent element except:

Select one of the following:

<meta>
<br/>
<head>
<html>
<body>

Explanation

Question 48 of 151

1

Which of the following correctly creates a hyperlink?

Select one of the following:

<a href="http:www.yorku.ca">EECS</a>
<a name="http:www.yorku.ca">EECS</a>
<a url="http:www.yorku.ca">EECS</a>
<a "http:www.yorku.ca">EECS</a>
<a link="http:www.yorku.ca">EECS</a>

Explanation

Question 49 of 151

1

The tag  is interpreted by your browser as ....

Select one of the following:

this is a comment, the browser ignores it.
this page is written using a word processor.
this page is written using HTML syntax.
this page was intentionally left blank.
this page has an associated CSS.

Explanation

Question 50 of 151

1

How would you insert a copyright symbol into a web page?

Select one of the following:

<copyright>
<copyright />
<symbol tag="copyright" />
<sym tag="copyright" />
©

Explanation

Question 51 of 151

1

Which tag is not associated with tables in HTML?

Select one of the following:

<row>
<td>
<tr>
<table>
<th>
<caption>

Explanation

Question 52 of 151

1

Which of the following characters is used to indicate the end of a tag?

Select one of the following:

^
*
>
<
#

Explanation

Question 53 of 151

1

The 'C' in W3C stands for:

Select one of the following:

Consortium
Corporation
Committee
Control
Central

Explanation

Question 54 of 151

1

It is important that your web pages follow web standards so that

Select one of the following:

they will render properly over a range of different browsers and devices.
they will be approved by Google.
they will be more efficient to compress and transfer across the web.

Explanation

Question 55 of 151

1

meta tags in the header section of a web page

Select one of the following:

supports caching that otherwise would not be possible
enable the browser to render your page more efficiently.
enable the server to transmit your page more efficiently.
provide valuable information to search engines and browsers about the structure and content of your document.
support global name search and replace.

Explanation

Question 56 of 151

1

The WWW is attributed to which person?

Select one of the following:

Bill Gates
Tim Cerf
Vincent Cerf
Tim Berners-Lee

Explanation

Question 57 of 151

1

Which protocol provides multiplex?

Select one of the following:

Transmission Control Protocol
Hypertext Transport Protocol
Data Layer Protocol
Internet Protocol

Explanation

Question 58 of 151

1

Which of the following characters is used to indicate the start of a tag?

Select one of the following:

<
>
*
#
^

Explanation

Question 59 of 151

1

The syntax template for a basic html page will ...

Select one of the following:

Use <head> ... </head> tags to identify the author of the page.
Surround the page with <html> ... </html> tags.
Properly indent material within the page so that it is readable.
Surround the page with <head> ... </head> tags.
Begin with <html> and end with </body>

Explanation

Question 60 of 151

1

Which group is in charge of deciding top-level domain names?

Select one of the following:

W3C
ICANN
IETF
Google

Explanation

Question 61 of 151

1

Which is not a valid URL format?

Select one of the following:

http://yorku.ca
http://130.63.236.137/index.html
http://yorku.ca:80
http://www.textpad.com/download/index.html
1Wh8RzcQZr4
http://www.youtube.com/watch?v

Explanation

Question 62 of 151

1

HTML is intended to ...

Select one of the following:

provide an efficient representation to download material from the web.
provide neither appearance nor structure to a document.
provide both appearance and structure to a document.
provide the appearance of a document but not specify its structure.
provide structure and content to a document but not specify its appearance.

Explanation

Question 63 of 151

1

Text that is be emphasized should be surrounded with

Select one of the following:

<emphasize> and </emphasize>
<em> and </em>
<i> and </i>
<b> and </b>
<font size="large"> and </font>

Explanation

Question 64 of 151

1

Which of the following tags starts a numbered list?

Select one of the following:

<list type="numbered">
<list>
<ol>
<ul>
<numbered>

Explanation

Question 65 of 151

1

In HTML comments start with ... and end with ...

Select one of the following:

they start with <comment> and end with </comment>
they start with /** and end with **/
they start with
they start with // and end with a carriage return
they start with /* and end with */

Explanation

Question 66 of 151

1

In HTML, paragraphs start with ... and end with ....

Select one of the following:

start with <center> and end with </p>
start with <p> and end with <li>
start with <br> and end with </br>
start with <p> and end with </p>
start with <p> and end with <ol>

Explanation

Question 67 of 151

1

In HTML the following heading tags are permitted

Select one of the following:

<head>
<h1> through <h6>
<h1> through <h9>
<heading>, <subheading>, <subsubheading>
<heading>, <subhead>, <subsubhead>

Explanation

Question 68 of 151

1

Which of the following is correct HTML5 for displaying an image?

Select one of the following:

<img file="image gif" alt="an image">
<img src="image.gif" alt="an image">
<img src="image.gif">
<image src="image.gif" alt="an image">
<image alt="image.gif">

Explanation

Question 69 of 151

1

Are the Internet and WWW the same thing?

Select one of the following:

No
Yes

Explanation

Question 70 of 151

1

If some text is preceded by <p><em> then it must be proceeded by:

Select one of the following:

</p em>
</p></em>
</em></p>
</em /p>
any of the above.

Explanation

Question 71 of 151

1

Which is not a valid IP address format?

Select one of the following:

200.43.33.34
128.0.44.1
56.0.267.34
1.21.44.129

Explanation

Question 72 of 151

1

Which of the following tags starts a bulleted list?

Select one of the following:

<bulleted>
<ol>
<list>
<ul>
<list type="bulleted">

Explanation

Question 73 of 151

1

Which of the following tags creates a definition list?

Select one of the following:

<dl>
<nl>
<ol>
<ul>
<li>

Explanation

Question 74 of 151

1

Which HTML element will not ignore spaces in text content

Select one of the following:

<h1>
<a>
<code>
'p"
<pre>

Explanation

Question 75 of 151

1

Tags that are not directly displayed on the page are written in the _____ section.

Select one of the following:

<title>
<head>
<html>
<p>
<body>

Explanation

Question 76 of 151

1

Which of the following is true about block and inline elements in HTML?

Select one of the following:

Block elements represent blocks of text. All other entries are in-line elements.
Block elements generally represent a relatively large portion of a page and may contain other
tags within it. Inline elements generally represent smaller portions of a page and are contained within a block element.
Block elements generally represent a relatively large poriton of a page, but cannot contain
other elements wihtin them. Inline elements generally represent smaller portions of a page and
are contained within nesting elements.
Block elements are the building blocks of html documents and must be contained within inline
elements.
Block elements, nested elements, and inline elements must all be contained within meta elements.

Explanation

Question 77 of 151

1

What is the correct HTML element for inserting a line break?

Select one of the following:

<h1>
<br>
<p>
<paragraph>
<break>

Explanation

Question 78 of 151

1

Which of the following is not an HTML element?

Select one of the following:

DOCTYPE
html
img
table
body

Explanation

Question 79 of 151

1

Which server is used to help determine the IP address of yorku.ca

Select one of the following:

Apache Web Server
Domain Name Server
Microsoft Internet Information Server (IIS)
Google Server

Explanation

Question 80 of 151

1

meta tags in the header section of a web page

Select one of the following:

support global name search and replace.
enable the server to transmit your page more efficiently
provide valuable information to search engines and browsers about the structure and content of your document
supports caching that otherwise would not be possible.
enable the browser to render your page more efficiently.

Explanation

Question 81 of 151

1

The WWW is attributed to which person?

Select one of the following:

Bill Gates
Tim Cerf
Tim Berners-Lee
Vincent Cerf

Explanation

Question 82 of 151

1

In PHP, what is the output of the following code?
$a = "a|b|c|d|e|f|g";
$c = explode("|", $a);
print $c[1];

Select one of the following:

b
a
|
d
a|b|c|d|e|f|g

Explanation

Question 83 of 151

1

In PHP file I/O what does the function file_get_contents() do?

Select one of the following:

returns a single string with the entire contents of the file
returns an array of strings where each string is a line in the file
writes data to a file
checks to see if a file exists

Explanation

Question 84 of 151

1

In HTML forms, input type="____" is a submit button?

Select one of the following:

submitbutton
submit
text
value="submit"

Explanation

Question 85 of 151

1

In PHP, what would be the output of the following?
$nickname = array("Robert" => "Bob", "Michael" => "Mike",
"Abdelraham" => "Abdo", "Yaoling" => "Yaoyoa");
print $nickname["Robert"];

Select one of the following:

Abdo
Mike
Yaoyao
Bob

Explanation

Question 86 of 151

1

In PHP file I/O, file() does what?

Select one of the following:

returns an array of strings where each string is a line in the file
writes data to a file
returns a single string with the entire contents of the file
checks to see if a file exists

Explanation

Question 87 of 151

1

In HTML forms, what is the CSS selector for an input type="text"?

Select one of the following:

.input text
input .text
input[type="text"]
input["type=text"]
["type=text"]

Explanation

Question 88 of 151

1

In PHP, what would be the value of the variable $c?
$a = array("red", "green", "blue", "yellow");
$c = count($a);

Select one of the following:

3
yellow
5
4

Explanation

Question 89 of 151

1

In PHP, what is the output of the following code?
$a = array("Abdel", "Didi", "Justin", "Trump");
if (in_array("Ford", $a))
{
print "found";
}
else
{
print "not found";
}

Select one of the following:

found
no output
this will cause an error
not found

Explanation

Question 90 of 151

1

Which line of the following PHP code has an error?
0: $c = rand(1,10);
1: if ( c == 5 )
2: {
3: print " $color ";
4: }

Select one of the following:

2
0
4
1
3

Explanation

Question 91 of 151

1

What variable in PHP is used to access data passed via the post method in HTML forms?

Select one of the following:

$_POST
$POST
$_DATA
$GET
$_GET

Explanation

Question 92 of 151

1

What are the results of the following boolean expressions?
1) 5 < 4
2) 10 > 5
3) 5 == 20

Select one of the following:

1) true , 2) true, 3) true
1) true, 2) false, 3) false
1) false, 2) false, 3) false
1) false, 2) true, 3) false

Explanation

Question 93 of 151

1

In HTML forms, input type="____" is a radio button?

Select one of the following:

radio button
radio
check
rad
radiobutton

Explanation

Question 94 of 151

1

Which file I/O function writes a data to a file in PHP?

Select one of the following:

file()
file_get_contents()
file_put_contents()
printfile()
file_write_contents()

Explanation

Question 95 of 151

1

In PHP, what is the value of the variable $c?
$a = array("red", "green", "yellow");
$b = "hello";
$c = $b . " " . strtoupper($a[1]);

Select one of the following:

hello RED
HELLO GREEN
hello GREEN
hello RED GREEN YELLOW
HELLO RED

Explanation

Question 96 of 151

1

What variable in PHP is used to access data passed via the URL?

Select one of the following:

$_GET
$GET
$_POST
$POST
$_DATA

Explanation

Question 97 of 151

1

In HTML forms, the HTML element label does what?

Select one of the following:

specifics the URL for the data to be sent to
associates text with an UI input
creates a label icon
creates a text input
creates a box around some UI

Explanation

Question 98 of 151

1

Using HTML forms, the tag <form method="___"> transmits data from the form using the URL?

Select one of the following:

put
post
get
url

Explanation

Question 99 of 151

1

In HTML forms, which UI tag does not require a close tag?

Select one of the following:

<form>
<input>
<textarea>
<select>

Explanation

Question 100 of 151

1

In PHP, what would be the output of the following?
$a = "hello world";
print $a[0];

Select one of the following:

l
you will get an error
h
hello

Explanation

Question 101 of 151

1

What is the output of the following PHP code?
$a = "string";
$a = strtoupper($a);
print $a[4];

Select one of the following:

STRING
I
i
N
n

Explanation

Question 102 of 151

1

In PHP, $a[] = "hello" does what?

Select one of the following:

this will cause a syntax error in PHP
appends the string "hello" to the end of the array
sets all array elements to "hello"
puts the string "hello" at the beginning of the array

Explanation

Question 103 of 151

1

In JavaScript, which of the following is not a valid comparison operator?

Select one of the following:

===
!=
>=
=!=
==
!==

Explanation

Question 104 of 151

1

Consider the following JavaScript code snippet
var q = 1 + 2 + parseInt("3");
After this executes, what value does q have?

Select one of the following:

33
6
123
"123"

Explanation

Question 105 of 151

1

In JavaScript, after executing var x = "hello"; then if you wanted to have var z have
the value of the number of characters in x, you could use

Select one of the following:

var z = x.length();
var z = length(x);
var z = x.length;
var z = 3;
var z = x.len;

Explanation

Question 106 of 151

1

In JavaScript, after executing
var x= "hello";
then if you wanted to have var z contain a string of the last character in x, you could use

Select one of the following:

var z = x.charAt(4);
var z = 'h';
var z = x.charAt(3);
var z = x.charAt(-1);
var z = "h";

Explanation

Question 107 of 151

1

Which variables below a global variable?
var i=0;
function foo()
{
var a = 10;
var b = 20;
var c = a*10 + b;
}

Select one of the following:

b
a
i
c

Explanation

Question 108 of 151

1

In JavaScript single line comments start with

Select one of the following:

//
/
##
#
C

Explanation

Question 109 of 151

1

In JavaScript, after executing
var x = 2;
var z = 1;
if (x == 4) {
z = 6;
} else {
z = 3;
}
then z has the value

Select one of the following:

3
infinity
4
1
6

Explanation

Question 110 of 151

1

In JavaScript, after executing
var x = 4;
var z = 1;
if (x > 0) {
z = 2;
}
then z has the value

Select one of the following:

4
0
1
2

Explanation

Question 111 of 151

1

In JavaScript, how many times does the code
for(var x=0;x<5;x++)
alert("hi");
cause an alert box to appear on the screen?

Select one of the following:

5
3
4
1
2

Explanation

Question 112 of 151

1

What global event is called once the HTML page has loaded?

Select one of the following:

HTML.pageLoad
window.onload
document.pageLoaded
window.load
document.onload

Explanation

Question 113 of 151

1

In JavaScript, which of the following is interpreted as being false in a logical expression

Select one of the following:

NaN
123
3.1415
true
"hello world"

Explanation

Question 114 of 151

1

In JavaScript multiple line comments are surround with

Select one of the following:

// and //
/* and *
## and ##
// and */
/* and //

Explanation

Question 115 of 151

1

Consider the following HTML code:
<div id="myDiv">
<p id="myP"> This is a test.</p>
</div>
How do you access the paragraph element above in JavaScript?

Select one of the following:

var a='<p id="myP">';
var a=document.getElementById("myP");
var a=document.getElementById("p);
var a=document.getElementById("myDiv);

Explanation

Question 116 of 151

1

In JavaScript, after executing var x = "2"; var y = "2"; var z = x + y; then the value of z is

Select one of the following:

22
"22"
this is invalid and will cause a run time error
4

Explanation

Question 117 of 151

1

In JavaScript, after executing
var x = 10;
var z = "" + x;
then the value of z is

Select one of the following:

"1","0"
10
"10"
""
this is invalid and will cause a run time error

Explanation

Question 118 of 151

1

What does DOM stand for?

Select one of the following:

Direct Object Manipulation
Document Object Model
Document Object Module
Detailed Object Map

Explanation

Question 119 of 151

1

Which of the following is not a fundamental type in JavaScript?

Select one of the following:

Number
Module
String
Boolean
Array

Explanation

Question 120 of 151

1

What is the proper way to define an array in JS?

Select one of the following:

var a =["a", "b", "c", "d"];
var a =("a", "b", "c", "d");
var a ="a", "b", "c", "d";
var a =array("a", "b", "c", "d");

Explanation

Question 121 of 151

1

How would you create an alert box with "Hello" in JavaScript?

Select one of the following:

print("Hello")
alert("Hello")
log("Hello")
msgBox("Hello")
dialog("Hello")

Explanation

Question 122 of 151

1

The following code is considered?
<button id="ok" onclick="okayClick();">OK</button>

Select one of the following:

obtrusive JavaScript
unobtrusive JavaScript

Explanation

Question 123 of 151

1

Consider the following JavaScript code. What type is the variable p?
var p = document.getElementsByTagName("p");

Select one of the following:

an array of element objects
a DOM tree
a paragraph
an element object

Explanation

Question 124 of 151

1

What does the following JavaScript code do?
var myP = document.getElementById("myP");
myP.children[1].style.backgroundColor = "silver";

Select one of the following:

Sets the background color to silver of the third child of element id="myP"
Modifies all children of elemetn id="myP"
Sets the background color to silver of the first child of element id="myP"
Sets the element id="myP" background to silver
Sets the second child of element id="myP" background to silver

Explanation

Question 125 of 151

1

Based on the following JS code which variable is local scoped?
var a=10;
function myFunc() {
var c=document.getElementById("myPar");
}

Select one of the following:

a
document
both a and c
c

Explanation

Question 126 of 151

1

What does the following JavaScript code snippet do?
$("button").stopObserving("mousemove");

Select one of the following:

removes the event handler function named "mousemove"
stops the mouse from moving over any buttons
removes the event handler function named "mousemove" for element with id="button"
removes the event handler function for "mousemove" events for element with id="button"

Explanation

Question 127 of 151

1

In the Prototype library, the $("p") function is equivalent to?

Select one of the following:

document.getElementsByTagName("p");
document.createElement("p");
document.getElementByTagName("p");
document.getElementById("p");

Explanation

Question 128 of 151

1

When does the global event "window.onload" get called?

Select one of the following:

As soon as the JS file is linked to the HTML page.
When a new window is created by an alert().
Only when the browser's refresh button is pressed.
After the webpage has been loaded.

Explanation

Question 129 of 151

1

Consider the following JavaScript code:
0: var allParas = document.getElementsByTagName("p");
1: for (var i = 0; i < allParas.length; i++) {
2: ???
3: }
What code should be placed on line 2 to make the background color of all p elements silver?

Select one of the following:

allParas[i].style.backgroundColor = "silver";
allParas[i].backgroundColor = "silver";
allParas.style.backgroundColor = "silver";
allParas.backgroundColor = "silver";

Explanation

Question 130 of 151

1

Are the following two lines of code equivalent?
$("button").observe("click", myClick);
$("button").onclick = myClick;

Select one of the following:

No
Yes

Explanation

Question 131 of 151

1

In Javascript, if you wanted to set a timer that calls function "myFunc" every second, which statement would you use?

Select one of the following:

setTimeout(myFunc, 1000);
setInterval(myFunc, 1000);
setInterval(1000, myFunc);
setTimeout(myFunc, 1000, REPEAT);
setRepeat(myFunc, 1000);

Explanation

Question 132 of 151

1

Consider the following HTML form object:
<input type="text" id="name">
How do you access content the user typed into this text field?

Select one of the following:

$("name").data
$("name").innerHTML
$("name").submit()
$("name").value

Explanation

Question 133 of 151

1

Assume function myClick is already defined. Which line in the following JavaScript code contains an error?
0: var allPars = document.getElementsByTagName("p");
1: var myButton = document.getElementById("myButton");
2: myButton.onclick = myClick;
3: allPars.onclick = myClick;

Select one of the following:

3
0
2
1
There is no error in this code.

Explanation

Question 134 of 151

1

Consider the following HTML code as a DOM tree:
<div id="myDiv">
<h1> Hello </h1>
<p> This is a test. </p>
<p> This is only <a href=""> a test. </a> </p>
<p> There will be one more test. </p>
</div>
Is the h1 element an ancestor of the element <a>?

Select one of the following:

No
Yes

Explanation

Question 135 of 151

1

Consider the following HTML:
0: <div>
1: <h1> A </h1>
2: <p> B </p>
3: <p> C </p>
4: </div>
which statement would return the element at line 3?

Select one of the following:

$("p")
getElementById("p")
$("h1").children[0]
$("div").children[2]

Explanation

Question 136 of 151

1

Using the Prototype library, which of the following would be used to submit a form?

Select one of the following:

$("myForm").submitForm();
document.submit();
$("myForm").submit();
$("myForm").submit = true;

Explanation

Question 137 of 151

1

Consider the following HTML code as a DOM tree:
<div id="myDiv>
<h1> Hello </h1>
<p> This is a test. </p>
<p> This is only <a myid="a" href=""> a test. </a> </p>
<p> There will be one more test. </p>
</div>
Is the element myid="a" a child of the div element?

Select one of the following:

no
yes

Explanation

Question 138 of 151

1

Consider the following HTML code as a DOM tree:
<div id="myDiv>
<h1> Hello </h1>
<p> This is a test. </p>
<p> This is only <a href=""> a test. </a> </p>
<p> There will be one more test. </p>
</div>
How many descendant element nodes does the div have?

Select one of the following:

5
0
3
4

Explanation

Question 139 of 151

1

What does the variable "this" refer to in the following JavaScript function:
function clickHandler() {
this.innerHTML = "clicked";
}

Select one of the following:

it refers to an HTML button element.
it refers to document.getElementsByTag("this").
it refers to an HTML checkbox element.
it refers to the HTML element object that called this function.

Explanation

Question 140 of 151

1

In JavaScript, does the DOM tree include the head section of the HTML page?

Select one of the following:

no
yes

Explanation

Question 141 of 151

1

Consider the following HTML and JS code. What is the value of pars.length?
<body>
<p> Paragraph 1 </p>
<div id="myDiv">
<p> Paragraph 2 </p>
</div>
</body>
var myDiv=document.getElementById("myDiv");
var pars=document.getElementsByTagName("p");

Select one of the following:

2
3
1
0

Explanation

Question 142 of 151

1

How would you create a new DOM node of type <p> in JavaScript?

Select one of the following:

document.createElement("p");
$("p").create();
document.newParagraph(1);
document.createTextNode("<p>");
document.getElementById("p");

Explanation

Question 143 of 151

1

In JavaScript, does the DOM tree include the head section of the HTML page?

Select one of the following:

no
yes

Explanation

Question 144 of 151

1

Consider the following JavaScript code. When will the function "myFunc" be called?
window.onload = function() {
setTimeout(myFunc, 1500);
}

Select one of the following:

After 1.5 seconds after the window.onload event
After 3pm on the current day the webpage is being accessed.
After 1500 seconds after the window.onload event
After 15 seconds after the window.onload event

Explanation

Question 145 of 151

1

What does the following JavaScript code snippet do?
$("button").stopObserving("mousemove");

Select one of the following:

stops the mouse from moving over any buttons
removes the event handler function named "mousemove"
removes the event handler function for "mousemove" events for element with id="button"
removes the event handler function named "mousemove" for element with id="button"

Explanation

Question 146 of 151

1

When does the global event "window.onload" get called?

Select one of the following:

After the webpage has been loaded.
Only when the browser's refresh button is pressed.
When a new window is created by an alert().
As soon as the JS file is linked to the HTML page.

Explanation

Question 147 of 151

1

In JavaScript, which of the following provides the X coordinates with respect to the HTML element the mouse is over?

Select one of the following:

event.browserX
event.offsetX
event.clientX
event.screenX

Explanation

Question 148 of 151

1

When interpreted as a DOM tree, how child nodes does div id="myDiv" have has children?
<p> Paragraph 1 </p>
<div id="myDiv">
<ul> <li> Item 1 </li>
<li> Item 2 </li>
<li> Item 3 </li>
</ul>
</div>
<p> Paragraph 2 </p>

Select one of the following:

3
1
<ul>
4

Explanation

Question 149 of 151

1

Consider the following JS Prototype code. When will the function "myFunc" be called?
$("myPar").observe("mouseover", myFunc);
$("myPar").observe("keydown", myVar)

Select one of the following:

anytime an event occurs with element id="myPar"
when the mouse cursor enters element id="myPar"
anytime the mouse cursor moves within the element id="myPar"
when a key is pressed down over element id="myPar"

Explanation

Question 150 of 151

1

In JavaScript, what command can be used to remove a node from the DOM tree?

Select one of the following:

document.removeChild(...)
document.killChild(...)
document.unappendChild(...)
document.deleteChild(...)

Explanation

Question 151 of 151

1

Consider the following HTML code as a DOM tree. How many children does the <body> element have?
<body>
<h1> My webpage </h1>
<div>
<p> Testing. </p>
<p> Another paragraph. </p>
</div>
</body>

Select one of the following:

2
0
1
4

	Created by Jimit Thakkar over 6 years ago

Computer Science Quiz on Practice midterm-2, created by Jimit Thakkar on 01/12/2017.

Practice midterm-2

Question 1 of 151

if you wanted a CSS rule to have all paragraphs of class silly to be centered on the page, which CSS rule would you use?

Select one of the following:

Explanation

Question 2 of 151

In CSS the selector .par matches

Select one of the following:

Explanation

Question 3 of 151

In PHP, what is the output of the following code $a = 2; $a = $a + 2; $a++; print $a;

Select one of the following:

Explanation

Question 4 of 151

In CSS which property is used to control the size of the text?

Select one of the following:

Explanation

Question 5 of 151

In CSS a rule has the syntax a { b : c ; }. In this rule the symbol a is known as a

Select one of the following:

Explanation

Question 6 of 151

$a = 10; $b = 5; print '$a*$b';

Select one of the following:

Explanation

Question 7 of 151

Which of the following is a valid CSS selector ?

Select one of the following:

Explanation

Question 8 of 151

In PHP, what would be the output of the following code: $a = 10; $b = 10; print "$a * $b";

Select one of the following:

Explanation

Question 9 of 151

Where should the reference to a style sheet be placed in an HTML document ?

Select one of the following:

Explanation

Question 10 of 151

What is the order of priority (from highest to lowest) that styles are applied to an element?

Select one of the following:

Explanation

Question 11 of 151

In CSS, considering the CSS Box Model, would be the final width of an element with the following id? #item { width: 100px; border: 5px; margin: 5px; padding: 0px; }

Select one of the following:

Explanation

Question 12 of 151

In CSS the selector p matches

Select one of the following:

Explanation

Question 13 of 151

The following PHP code has an error. What line is this error on? 0: $a = 10 + 1; 1: $b = "10" 2: if ($a <> $b) 3: { 4: print "Not equal"; 5: } 6: else 7: { 8: $b++; 9: }

Select one of the following:

Explanation

Question 14 of 151

Considering the CSS box model, what is the final width of an element of this class: .item { width: 100px; margin: 10px; padding-left: 10px; padding-right: 0px; }

Select one of the following:

Explanation

Question 15 of 151

Which of the following would change the background colour for all <h1> elements to white?

Select one of the following:

Explanation

Question 16 of 151

In CSS which property is used to control the background color?

Select one of the following:

Explanation

Question 17 of 151

In CSS to apply color: red to h1 and h2 you could use the rule(s)

Select one of the following:

Explanation

Question 18 of 151

In CSS which property is used to control the text color of an element?

Select one of the following:

Explanation

Question 19 of 151

The difference between serif and sans-serif fonts is that

Select one of the following:

Explanation

Question 20 of 151

Which of the following is not a valid variable in PHP?

if you wanted a CSS rule to have all paragraphs of class
silly to be centered on the page, which CSS rule would you use?

In PHP, what is the output of the following code
$a = 2;
$a = $a + 2;
$a++;
print $a;

In CSS which property is used to control the
size of the text?

In CSS a rule has the syntax a { b : c ; }. In this
rule the symbol a is known as a

$a = 10;
$b = 5;
print '$a*$b';

In PHP, what would be the output of the following code:
$a = 10;
$b = 10;
print "$a * $b";

Where should the reference to a style sheet be
placed in an HTML document ?

In CSS, considering the CSS Box Model, would be the final width of an element with the following id?
#item {
width: 100px;
border: 5px;
margin: 5px;
padding: 0px;
}

The following PHP code has an error. What line is this error on?
0: $a = 10 + 1;
1: $b = "10"
2: if ($a <> $b)
3: {
4: print "Not equal";
5: }
6: else
7: {
8: $b++;
9: }

Considering the CSS box model, what is the final width of an element of this class:
.item {
width: 100px;
margin: 10px;
padding-left: 10px;
padding-right: 0px;
}

Which of the following would change the background
colour for all <h1> elements to white?

In CSS which property is used to control the background
color?

In CSS to apply color: red to
h1 and h2 you could use the rule(s)

In CSS which property is used to control the
text color of an element?

In PHP what is the value of $a
$s = "Hello World";
$a = $s[7];

In PHP, what will be the output of the following code
$a = "hello ";
$b = "world ";
$c = 10;
print $a . $c . $b ;

[HTML]
In PHP, what is the output of the following code:
$a = 10;
$b = "10";
if ($a == $b)
{
print "hello ";
}
print "world";

In CSS which property is used to control the
horizontal alignment of text in an element?

$a = 2 + 3 * 5 + 10;
print $a;

In PHP what is the data type of the variable $c?
$a = "10";
$b = "20";
$c = $a * $b;

CSS enables links to be styled differently depending on
what state they are in. To set the hover colour for a link to be white, one would
code a CSS rule

In PHP what is the data type of the variable $c?
$a = 10;
$b = 1.238;
$c = $a * $b;

In CSS a rule has the syntax a { b : c ; }. In this
rule the symbol a is known as a

In PHP, what would be the output of the following code:
$a = 10;
$b = 10;
print "$a * $b";