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Quiz von Jimit Thakkar, aktualisiert more than 1 year ago
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Erstellt von Jimit Thakkar
vor fast 7 Jahre
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Frage 1
Frage
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?
Antworten
-
silly { text-align: center; }
-
p.silly { align: center; }
-
p
-
p.silly { text-align: center; }
-
p < silly { align: center; }
Frage 2
Frage
In CSS the selector .par matches
Antworten
-
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
Frage 3
Frage
In PHP, what is the output of the following code
$a = 2;
$a = $a + 2;
$a++;
print $a;
Antworten
-
8
-
2
-
5
-
6
-
4
Frage 4
Frage
In CSS which property is used to control the
size of the text?
Antworten
-
font
-
text-style
-
font-style
-
text-size
-
font-size
Frage 5
Frage
In CSS a rule has the syntax a { b : c ; }. In this
rule the symbol a is known as a
Antworten
-
value
-
parameter
-
Selector
-
property
-
comment
Frage 6
Frage
$a = 10;
$b = 5;
print '$a*$b';
Antworten
-
10*5
-
50
-
you will get an error
-
$a*$b
Frage 7
Frage
Which of the following is a valid CSS selector ?
Antworten
-
p { color red }
-
p color red
-
p { color: red; }
-
p color: red;
-
p.color { red; }
Frage 8
Frage
In PHP, what would be the output of the following code:
$a = 10;
$b = 10;
print "$a * $b";
Antworten
-
you will get an error
-
100
-
$a * $b
-
10*10
Frage 9
Frage
Where should the reference to a style sheet be
placed in an HTML document ?
Antworten
-
In the <head> section.
-
In the <style> section.
-
In the 'tail> section.
-
In the <body> section.
-
In the <css> section.
Frage 10
Frage
What is the order of priority (from highest to lowest) that styles are applied to an element?
Antworten
-
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
Frage 11
Frage
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;
}
Antworten
-
100
-
110
-
105
-
120
-
90
Frage 12
Frage
In CSS the selector p matches
Antworten
-
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
Frage 13
Frage
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: }
Antworten
-
0
-
1
-
4
-
2
Frage 14
Frage
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;
}
Antworten
-
120
-
130
-
150
-
100
Frage 15
Frage
Which of the following would change the background
colour for all <h1> elements to white?
Antworten
-
h1.all { background-color: white }
-
header1 { background-color: white }
-
.h1 { background-color: white }
-
h1 { background-color: white }
Frage 16
Frage
In CSS which property is used to control the background
color?
Antworten
-
color
-
backgroung-color
-
background-colour
-
bgcolor
Frage 17
Frage
In CSS to apply color: red to
h1 and h2 you could use the rule(s)
Antworten
-
h1.h2 { color : red; }
-
h1:h2 { color : red; }
-
h1, h2 { color : red; }
-
h1 { color : red; } h2 { color : blue; }
-
h1 { red : color; } h2 { red : color; }
Frage 18
Frage
In CSS which property is used to control the
text color of an element?
Antworten
-
text-color
-
background-color
-
foreground-color
-
text-colour
-
color
Frage 19
Frage
The difference between serif and sans-serif fonts is that
Antworten
-
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
Frage 20
Frage
Which of the following is not a valid variable in PHP?
Antworten
-
$1name
-
$name
-
$_name1
-
$name1
-
$Name
Frage 21
Frage
In PHP what is the value of $a
$s = "Hello World";
$a = $s[7];
Antworten
-
"o"
-
you will get an error
-
"Hello"
-
"W"
-
7
Frage 22
Frage
In PHP, what will be the output of the following code
$a = "hello ";
$b = "world ";
$c = 10;
print $a . $c . $b ;
Antworten
-
you will get an error
-
hello 10 world
-
10
-
hello world
-
hello
Frage 23
Frage
[HTML]
In PHP, what is the output of the following code:
$a = 10;
$b = "10";
if ($a == $b)
{
print "hello ";
}
print "world";
Antworten
-
hello
-
world
-
$a
-
$b
-
hello world
Frage 24
Frage
In CSS the selector #p matches
Antworten
-
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
Frage 25
Frage
The background of a given HTML element can be manipulated with
Antworten
-
you cannot change the background of an element
-
only background-image
-
background-color, background-image
-
only background-color
Frage 26
Frage
In CSS which property is used to control the
horizontal alignment of text in an element?
Antworten
-
text-align
-
alignment
-
center-align
-
center
-
align
Frage 27
Frage
$a = 2 + 3 * 5 + 10;
print $a;
Antworten
-
27
-
23510
-
35
-
20
Frage 28
Frage
It is possible to define CSS in
Antworten
-
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
Frage 29
Frage
Which of the following is the correct HTML to refer to an external style sheet style.css ?
Antworten
-
<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>
Frage 30
Frage
What does CSS stand for?
Antworten
-
Cascading Style Sheets
-
Computer Style Sheets
-
CSS does not stand for anything
-
Computer Symbol Sheets
-
Cascading Symbols and Symptoms
Frage 31
Frage
In PHP what is the data type of the variable $c?
$a = "10";
$b = "20";
$c = $a * $b;
Antworten
-
array
-
float
-
string
-
boolean
-
integer
Frage 32
Frage
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
Antworten
-
a { color : white ; hover : true ;}
-
a:link { color : white ; }
-
a { color : white ; hover-dwell : true ;}
-
a { hover-color : white ;}
-
a:hover { color : white ; }
Frage 33
Frage
In CSS, which property would be used to allow an image to be positioned on the right?
Antworten
-
clear: right
-
float: right
-
align: righ
-
overflow: hidden
Frage 34
Frage
In CSS, what is the range for the R, G, B when specifying a color using rgb(R, G, B) ?
Antworten
-
1-256
-
0xFFFFFF
-
0-255
-
1-100
-
0-1
Frage 35
Frage
In PHP what is the data type of the variable $c?
$a = 10;
$b = 1.238;
$c = $a * $b;
Antworten
-
String
-
array
-
float
-
integer
-
boolean
Frage 36
Frage
In CSS a rule has the syntax a { b : c ; }. In this
rule the symbol a is known as a
Antworten
-
parameter
-
Selector
-
value
-
comment
-
property
Frage 37
Frage
In PHP, what would be the output of the following code:
$a = 10;
$b = 10;
print "$a * $b";
Antworten
-
100
-
10*10
-
$a*$b
-
you will get an error
Frage 38
Frage
In CSS the selector p matches
Antworten
-
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
Frage 39
Frage
Which of the following would change the background
colour for all <h1> elements to white?
Antworten
-
h1.all { background-color: white }
-
h1 { background-color: white }
-
header1 { background-color: white }
-
.h1 { background-color: white }
Frage 40
Frage
In CSS which property is used to control the background
color?
Antworten
-
colour
-
background-color
-
color-background
-
bgcolor
-
color
Frage 41
Frage
Which of the following is a valid CSS selector ?
Antworten
-
p.color { red; }
-
p color: red;
-
p color red
-
p { color: red; }
-
p { color red }
Frage 42
Frage
Which of the following will cause you to open the link in a new tab or browser window?
Antworten
-
<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="/">
Frage 43
Frage
Which of the following HTML elements defines the title of a document?
Antworten
-
<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>
Frage 44
Frage
How could you output the following text in HTML?: <p> This is an example of a paragraph tag </p> in HTML
Antworten
-
<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>
Frage 45
Frage
Which of the following HTML tags are classified as empty or void tags? Choose the most complete answer
Antworten
-
<hr>
-
No HTML tags are allowed to be empty or void. Incorrect
-
<hr>, <br> and <img>
-
<br> and <p>
-
<hr>, <br> and <p>
Frage 46
Frage
The syntax of HTML requires that the name and value of an element's attribute be separated by:
Antworten
-
an equal sign.
-
a semicolon.
-
a tab.
-
one or more spaces.
-
a comma.
Frage 47
Frage
Every HTML element has a parent element except:
Antworten
-
<meta>
-
<br/>
-
<head>
-
<html>
-
<body>
Frage 48
Frage
Which of the following correctly creates a hyperlink?
Antworten
-
<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>
Frage 49
Frage
The tag <!-- DOCTYPE html --> is interpreted by your browser as ....
Antworten
-
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.
Frage 50
Frage
How would you insert a copyright symbol into a web page?
Antworten
-
<copyright>
-
<copyright />
-
<symbol tag="copyright" />
-
<sym tag="copyright" />
-
©
Frage 51
Frage
Which tag is not associated with tables in HTML?
Antworten
-
<row>
-
<td>
-
<tr>
-
<table>
-
<th>
-
<caption>
Frage 52
Frage
Which of the following characters is used to indicate the end of a tag?
Antworten
-
^
-
*
-
>
-
<
-
#
Frage 53
Frage
The 'C' in W3C stands for:
Antworten
-
Consortium
-
Corporation
-
Committee
-
Control
-
Central
Frage 54
Frage
It is important that your web pages follow web standards so that
Antworten
-
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.
Frage 55
Frage
meta tags in the header section of a web page
Antworten
-
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.
Frage 56
Frage
The WWW is attributed to which person?
Antworten
-
Bill Gates
-
Tim Cerf
-
Vincent Cerf
-
Tim Berners-Lee
Frage 57
Frage
Which protocol provides multiplex?
Antworten
-
Transmission Control Protocol
-
Hypertext Transport Protocol
-
Data Layer Protocol
-
Internet Protocol
Frage 58
Frage
Which of the following characters is used to indicate the start of a tag?
Antworten
-
<
-
>
-
*
-
#
-
^
Frage 59
Frage
The syntax template for a basic html page will ...
Antworten
-
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>
Frage 60
Frage
Which group is in charge of deciding top-level domain names?
Antworten
-
W3C
-
ICANN
-
IETF
-
Google
Frage 61
Frage
Which is not a valid URL format?
Antworten
-
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
Frage 62
Frage
HTML is intended to ...
Antworten
-
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.
Frage 63
Frage
Text that is be emphasized should be surrounded with
Antworten
-
<emphasize> and </emphasize>
-
<em> and </em>
-
<i> and </i>
-
<b> and </b>
-
<font size="large"> and </font>
Frage 64
Frage
Which of the following tags starts a numbered list?
Antworten
-
<list type="numbered">
-
<list>
-
<ol>
-
<ul>
-
<numbered>
Frage 65
Frage
In HTML comments start with ... and end with ...
Antworten
-
they start with <comment> and end with </comment>
-
they start with /** and end with **/
-
they start with <!-- and end with -->
-
they start with // and end with a carriage return
-
they start with /* and end with */
Frage 66
Frage
In HTML, paragraphs start with ... and end with ....
Antworten
-
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>
Frage 67
Frage
In HTML the following heading tags are permitted
Antworten
-
<head>
-
<h1> through <h6>
-
<h1> through <h9>
-
<heading>, <subheading>, <subsubheading>
-
<heading>, <subhead>, <subsubhead>
Frage 68
Frage
Which of the following is correct HTML5 for displaying an image?
Antworten
-
<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">
Frage 69
Frage
Are the Internet and WWW the same thing?
Antworten
-
No
-
Yes
Frage 70
Frage
If some text is preceded by <p><em> then it must be proceeded by:
Antworten
-
</p em>
-
</p></em>
-
</em></p>
-
</em /p>
-
any of the above.
Frage 71
Frage
Which is not a valid IP address format?
Antworten
-
200.43.33.34
-
128.0.44.1
-
56.0.267.34
-
1.21.44.129
Frage 72
Frage
Which of the following tags starts a bulleted list?
Antworten
-
<bulleted>
-
<ol>
-
<list>
-
<ul>
-
<list type="bulleted">
Frage 73
Frage
Which of the following tags creates a definition list?
Antworten
-
<dl>
-
<nl>
-
<ol>
-
<ul>
-
<li>
Frage 74
Frage
Which HTML element will not ignore spaces in text content
Antworten
-
<h1>
-
<a>
-
<code>
-
'p"
-
<pre>
Frage 75
Frage
Tags that are not directly displayed on the page are written in the _____ section.
Antworten
-
<title>
-
<head>
-
<html>
-
<p>
-
<body>
Frage 76
Frage
Which of the following is true about block and inline elements in HTML?
Antworten
-
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.
Frage 77
Frage
What is the correct HTML element for inserting a line break?
Antworten
-
<h1>
-
<br>
-
<p>
-
<paragraph>
-
<break>
Frage 78
Frage
Which of the following is not an HTML element?
Antworten
-
DOCTYPE
-
html
-
img
-
table
-
body
Frage 79
Frage
Which server is used to help determine the IP address of yorku.ca
Antworten
-
Apache Web Server
-
Domain Name Server
-
Microsoft Internet Information Server (IIS)
-
Google Server
Frage 80
Frage
meta tags in the header section of a web page
Antworten
-
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.
Frage 81
Frage
The WWW is attributed to which person?
Antworten
-
Bill Gates
-
Tim Cerf
-
Tim Berners-Lee
-
Vincent Cerf
Frage 82
Frage
In PHP, what is the output of the following code?
$a = "a|b|c|d|e|f|g";
$c = explode("|", $a);
print $c[1];
Antworten
-
b
-
a
-
|
-
d
-
a|b|c|d|e|f|g
Frage 83
Frage
In PHP file I/O what does the function file_get_contents() do?
Antworten
-
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
Frage 84
Frage
In HTML forms, input type="____" is a submit button?
Antworten
-
submitbutton
-
submit
-
text
-
value="submit"
Frage 85
Frage
In PHP, what would be the output of the following?
$nickname = array("Robert" => "Bob", "Michael" => "Mike",
"Abdelraham" => "Abdo", "Yaoling" => "Yaoyoa");
print $nickname["Robert"];
Antworten
-
Abdo
-
Mike
-
Yaoyao
-
Bob
Frage 86
Frage
In PHP file I/O, file() does what?
Antworten
-
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
Frage 87
Frage
In HTML forms, what is the CSS selector for an input type="text"?
Antworten
-
.input text
-
input .text
-
input[type="text"]
-
input["type=text"]
-
["type=text"]
Frage 88
Frage
In PHP, what would be the value of the variable $c?
$a = array("red", "green", "blue", "yellow");
$c = count($a);
Antworten
-
3
-
yellow
-
5
-
4
Frage 89
Frage
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";
}
Antworten
-
found
-
no output
-
this will cause an error
-
not found
Frage 90
Frage
Which line of the following PHP code has an error?
0: $c = rand(1,10);
1: if ( c == 5 )
2: {
3: print " $color ";
4: }
Antworten
-
2
-
0
-
4
-
1
-
3
Frage 91
Frage
What variable in PHP is used to access data passed via the post method in HTML forms?
Antworten
-
$_POST
-
$POST
-
$_DATA
-
$GET
-
$_GET
Frage 92
Frage
What are the results of the following boolean expressions?
1) 5 < 4
2) 10 > 5
3) 5 == 20
Antworten
-
1) true , 2) true, 3) true
-
1) true, 2) false, 3) false
-
1) false, 2) false, 3) false
-
1) false, 2) true, 3) false
Frage 93
Frage
In HTML forms, input type="____" is a radio button?
Antworten
-
radio button
-
radio
-
check
-
rad
-
radiobutton
Frage 94
Frage
Which file I/O function writes a data to a file in PHP?
Antworten
-
file()
-
file_get_contents()
-
file_put_contents()
-
printfile()
-
file_write_contents()
Frage 95
Frage
In PHP, what is the value of the variable $c?
$a = array("red", "green", "yellow");
$b = "hello";
$c = $b . " " . strtoupper($a[1]);
Antworten
-
hello RED
-
HELLO GREEN
-
hello GREEN
-
hello RED GREEN YELLOW
-
HELLO RED
Frage 96
Frage
What variable in PHP is used to access data passed via the URL?
Antworten
-
$_GET
-
$GET
-
$_POST
-
$POST
-
$_DATA
Frage 97
Frage
In HTML forms, the HTML element label does what?
Antworten
-
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
Frage 98
Frage
Using HTML forms, the tag <form method="___"> transmits data from the form using the URL?
Antworten
-
put
-
post
-
get
-
url
Frage 99
Frage
In HTML forms, which UI tag does not require a close tag?
Antworten
-
<form>
-
<input>
-
<textarea>
-
<select>
Frage 100
Frage
In PHP, what would be the output of the following?
$a = "hello world";
print $a[0];
Antworten
-
l
-
you will get an error
-
h
-
hello
Frage 101
Frage
What is the output of the following PHP code?
$a = "string";
$a = strtoupper($a);
print $a[4];
Antworten
-
STRING
-
I
-
i
-
N
-
n
Frage 102
Frage
In PHP, $a[] = "hello" does what?
Antworten
-
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
Frage 103
Frage
In JavaScript, which of the following is not a valid comparison operator?
Antworten
-
===
-
!=
-
>=
-
=!=
-
==
-
!==
Frage 104
Frage
Consider the following JavaScript code snippet
var q = 1 + 2 + parseInt("3");
After this executes, what value does q have?
Antworten
-
33
-
6
-
123
-
"123"
Frage 105
Frage
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
Antworten
-
var z = x.length();
-
var z = length(x);
-
var z = x.length;
-
var z = 3;
-
var z = x.len;
Frage 106
Frage
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
Antworten
-
var z = x.charAt(4);
-
var z = 'h';
-
var z = x.charAt(3);
-
var z = x.charAt(-1);
-
var z = "h";
Frage 107
Frage
Which variables below a global variable?
var i=0;
function foo()
{
var a = 10;
var b = 20;
var c = a*10 + b;
}
Antworten
-
b
-
a
-
i
-
c
Frage 108
Frage
In JavaScript single line comments start with
Antworten
-
//
-
/
-
##
-
#
-
C
Frage 109
Frage
In JavaScript, after executing
var x = 2;
var z = 1;
if (x == 4) {
z = 6;
} else {
z = 3;
}
then z has the value
Antworten
-
3
-
infinity
-
4
-
1
-
6
Frage 110
Frage
In JavaScript, after executing
var x = 4;
var z = 1;
if (x > 0) {
z = 2;
}
then z has the value
Antworten
-
4
-
0
-
1
-
2
Frage 111
Frage
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?
Antworten
-
5
-
3
-
4
-
1
-
2
Frage 112
Frage
What global event is called once the HTML page has loaded?
Antworten
-
HTML.pageLoad
-
window.onload
-
document.pageLoaded
-
window.load
-
document.onload
Frage 113
Frage
In JavaScript, which of the following is interpreted as being false in a logical expression
Antworten
-
NaN
-
123
-
3.1415
-
true
-
"hello world"
Frage 114
Frage
In JavaScript multiple line comments are surround with
Antworten
-
// and //
-
/* and *
-
## and ##
-
// and */
-
/* and //
Frage 115
Frage
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?
Antworten
-
var a='<p id="myP">';
-
var a=document.getElementById("myP");
-
var a=document.getElementById("p);
-
var a=document.getElementById("myDiv);
Frage 116
Frage
In JavaScript, after executing var x = "2"; var y = "2"; var z = x + y; then the value of z is
Antworten
-
22
-
"22"
-
this is invalid and will cause a run time error
-
4
Frage 117
Frage
In JavaScript, after executing
var x = 10;
var z = "" + x;
then the value of z is
Antworten
-
"1","0"
-
10
-
"10"
-
""
-
this is invalid and will cause a run time error
Frage 118
Frage
What does DOM stand for?
Antworten
-
Direct Object Manipulation
-
Document Object Model
-
Document Object Module
-
Detailed Object Map
Frage 119
Frage
Which of the following is not a fundamental type in JavaScript?
Antworten
-
Number
-
Module
-
String
-
Boolean
-
Array
Frage 120
Frage
What is the proper way to define an array in JS?
Antworten
-
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");
Frage 121
Frage
How would you create an alert box with "Hello" in JavaScript?
Antworten
-
print("Hello")
-
alert("Hello")
-
log("Hello")
-
msgBox("Hello")
-
dialog("Hello")
Frage 122
Frage
The following code is considered?
<button id="ok" onclick="okayClick();">OK</button>
Antworten
-
obtrusive JavaScript
-
unobtrusive JavaScript
Frage 123
Frage
Consider the following JavaScript code. What type is the variable p?
var p = document.getElementsByTagName("p");
Antworten
-
an array of element objects
-
a DOM tree
-
a paragraph
-
an element object
Frage 124
Frage
What does the following JavaScript code do?
var myP = document.getElementById("myP");
myP.children[1].style.backgroundColor = "silver";
Antworten
-
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
Frage 125
Frage
Based on the following JS code which variable is local scoped?
var a=10;
function myFunc() {
var c=document.getElementById("myPar");
}
Antworten
-
a
-
document
-
both a and c
-
c
Frage 126
Frage
What does the following JavaScript code snippet do?
$("button").stopObserving("mousemove");
Antworten
-
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"
Frage 127
Frage
In the Prototype library, the $("p") function is equivalent to?
Antworten
-
document.getElementsByTagName("p");
-
document.createElement("p");
-
document.getElementByTagName("p");
-
document.getElementById("p");
Frage 128
Frage
When does the global event "window.onload" get called?
Antworten
-
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.
Frage 129
Frage
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?
Antworten
-
allParas[i].style.backgroundColor = "silver";
-
allParas[i].backgroundColor = "silver";
-
allParas.style.backgroundColor = "silver";
-
allParas.backgroundColor = "silver";
Frage 130
Frage
Are the following two lines of code equivalent?
$("button").observe("click", myClick);
$("button").onclick = myClick;
Antworten
-
No
-
Yes
Frage 131
Frage
In Javascript, if you wanted to set a timer that calls function "myFunc" every second, which statement would you use?
Antworten
-
setTimeout(myFunc, 1000);
-
setInterval(myFunc, 1000);
-
setInterval(1000, myFunc);
-
setTimeout(myFunc, 1000, REPEAT);
-
setRepeat(myFunc, 1000);
Frage 132
Frage
Consider the following HTML form object:
<input type="text" id="name">
How do you access content the user typed into this text field?
Antworten
-
$("name").data
-
$("name").innerHTML
-
$("name").submit()
-
$("name").value
Frage 133
Frage
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;
Antworten
-
3
-
0
-
2
-
1
-
There is no error in this code.
Frage 134
Frage
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>?
Antworten
-
No
-
Yes
Frage 135
Frage
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?
Antworten
-
$("p")
-
getElementById("p")
-
$("h1").children[0]
-
$("div").children[2]
Frage 136
Frage
Using the Prototype library, which of the following would be used to submit a form?
Antworten
-
$("myForm").submitForm();
-
document.submit();
-
$("myForm").submit();
-
$("myForm").submit = true;
Frage 137
Frage
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?
Antworten
-
no
-
yes
Frage 138
Frage
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?
Antworten
-
5
-
0
-
3
-
4
Frage 139
Frage
What does the variable "this" refer to in the following JavaScript function:
function clickHandler() {
this.innerHTML = "clicked";
}
Antworten
-
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.
Frage 140
Frage
In JavaScript, does the DOM tree include the head section of the HTML page?
Antworten
-
no
-
yes
Frage 141
Frage
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");
Antworten
-
2
-
3
-
1
-
0
Frage 142
Frage
How would you create a new DOM node of type <p> in JavaScript?
Antworten
-
document.createElement("p");
-
$("p").create();
-
document.newParagraph(1);
-
document.createTextNode("<p>");
-
document.getElementById("p");
Frage 143
Frage
In JavaScript, does the DOM tree include the head section of the HTML page?
Antworten
-
no
-
yes
Frage 144
Frage
Consider the following JavaScript code. When will the function "myFunc" be called?
window.onload = function() {
setTimeout(myFunc, 1500);
}
Antworten
-
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
Frage 145
Frage
What does the following JavaScript code snippet do?
$("button").stopObserving("mousemove");
Antworten
-
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"
Frage 146
Frage
When does the global event "window.onload" get called?
Antworten
-
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.
Frage 147
Frage
In JavaScript, which of the following provides the X coordinates with respect to the HTML element the mouse is over?
Antworten
-
event.browserX
-
event.offsetX
-
event.clientX
-
event.screenX
Frage 148
Frage
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>
Antworten
-
3
-
1
-
<ul>
-
4
Frage 149
Frage
Consider the following JS Prototype code. When will the function "myFunc" be called?
$("myPar").observe("mouseover", myFunc);
$("myPar").observe("keydown", myVar)
Antworten
-
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"
Frage 150
Frage
In JavaScript, what command can be used to remove a node from the DOM tree?
Antworten
-
document.removeChild(...)
-
document.killChild(...)
-
document.unappendChild(...)
-
document.deleteChild(...)
Frage 151
Frage
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>
Antworten
-
2
-
0
-
1
-
4
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