Web-Technologies
Question 1 |
Consider the following XML DTD describing course information in a university:
<!ELEMENT Univ (Course+, Prof+)> <!ELEMENT Course (Title, Eval*)> <!ATTLIST Course Number ID #REQUIRED Instructor IDREF #IMPLIED> <!ELEMENT Title (#PCDATA)> <!ELEMENT Eval (#PCDATA)> <!ATTLIST Eval Score CDATA #REQUIRED> <!ELEMENT Prof EMPTY> <!ATTLIST Prof Name ID #REQUIRED Teaches IDREF #IMPLIED>
What is returned by the following XQuery?
let $as := //@Score for $c in /Univ/Course[Eval] let $cs := $c/Eval?@Score where min($cs) > avg($as) return $c
The professor with the lowest course evaluation | |
Professors who have all their course evaluations above the university average | |
The course with the lowest evaluation | |
Courses with all evaluations above the university average |
Question 1 Explanation:
Note: Out of syllabus.
Question 2 |
Consider the XML document fragment given below:
Consider the XPath expression: *[not (self)::TOC]
What would be the result of the given XPath expression when the current node is Book?
The Title and Content elements | |
The Content and TOC elements | |
The Title and TOC elements | |
The Title, Content and TOC elements
|
Question 2 Explanation:
Note: Out of syllabus.
Question 3 |
Given below are HTML lines,
With reference to the HTML lines given above, consider the following statements.
(i) Clicking on the point <80, 75> does not have any effect.
(ii) The web browser can identify the area applicable to the mouse-click within the image and the subsequent action to be taken without additional responses from the web server.
(iii) The dots in the cgi-bin URL will be resolved by the web browser before it is sent to the web server.
(iv) The "fd.html" request when sent to the web server will result in a GET request.
Exactly how many of the statements given above are correct?
0 | |
1 | |
2 | |
3 |
Question 3 Explanation:
Note: Out of syllabus.
Question 4 |
Which of the following is TRUE only of XML but NOT HTML?
It is derived from SGML | |
It describes content and layout | |
It allows user defined tags | |
It is restricted only to be used with web browsers |
Question 4 Explanation:
Note: Out of syllabus.
Question 5 |
Which of following statements is/are False?
1. XML overcomes the limitations in HTML to support a structured way of organizing content.
2. XML specification is not case sensitive while HTML specification is case sensitive.
3. XML supports user defined tags while HTML uses pre-defined tags.
4. XML tags need not be closed while HTML tags must be closed.
1. XML overcomes the limitations in HTML to support a structured way of organizing content.
2. XML specification is not case sensitive while HTML specification is case sensitive.
3. XML supports user defined tags while HTML uses pre-defined tags.
4. XML tags need not be closed while HTML tags must be closed.
2 only | |
1 only | |
2 and 4 only | |
3 and 4 only |
Question 6 |
In a web server, ten Web Pages are stored with the URLs of the form http://www.yourname.com/var.html; where, var is a different number from 1 to 10 for each Webpage. Suppose, the client stores the Webpage with var = 1 (say W1) in local machine, edits and then tests. Rest of the Web Pages remains on the web server. W1 contains several relative URLs of the form “var.html” referring to the other Web Pages. Which one of the following statements needs to be added in W1, so that all the relative URLs in W1 refer to the appropriate Web Pages on the web server?
<a.href: “http://www.yourname.com/”, href: “...var.html”> | |
<base href: “http://www.yourname.com/”> | |
<a.href: “http://www.yourname.com/”> | |
<base href: “http://www.yourname.com/”, range: “...var.html”> |
Question 7 |
Consider the HTML table definition given below:
The number of rows in each column and the number of columns in each row are:
〈2, 2, 3〉 and 〈2, 3, 2〉 | |
〈2, 2, 3〉 and 〈2, 2, 3〉 | |
〈2, 3, 2〉 and 〈2, 3, 2〉 | |
〈2, 3, 2〉 and 〈2, 2, 3〉 |
Question 7 Explanation:
Note: Out of syllabus. [Web Technologies]
Question 8 |
HTML (Hyper Text Markup Language) has language elements which permit certain actions other than describing the structure of the web document. Which one of the following actions is NOT supported by pure HTML (without any server or client side scripting) pages?
Embed web objects from different sites into the same page | |
Refresh the page automatically after a specified interval | |
Automatically redirect to another page upon download | |
Display the client time as part of the page |
Question 8 Explanation:
Note: Out of syllabus.
Question 9 |
A graphical HTML browser resident at a network client machine Q accesses a static HTML webpage from a HTTP server S. The static HTML page has exactly one static embedded image which is also at S. Assuming no caching, which one of the following is correct about the HTML webpage loading (including the embedded image)?
Q needs to send at least 2 HTTP requests to S, each necessarily in a separate TCP connection to server S | |
Q needs to send at least 2 HTTP requests to S, but a single TCP connection to server S is sufficient | |
A single HTTP request from Q to S is sufficient, and a single TCP connection between Q and S is necessary for this | |
A single HTTP request from Q to S is sufficient, and this is possible without any TCP connection between Q and S |
Question 9 Explanation:
By default, HTTP is a persistent connection.
Whenever a browser opens a webpage, a separate HTML request must be sent for each image or component in HTML like css file or javascript. But all can be done in the same TCP connection.
Whenever a browser opens a webpage, a separate HTML request must be sent for each image or component in HTML like css file or javascript. But all can be done in the same TCP connection.
Question 10 |
I n XML we can specify the frequency of an element by using the symbols:
+ * ! | |
# * ! | |
+* ? | |
- * ? |
Question 11 |
In XML, DOCTYPE declaration specifies to include a reference to __________ file.
Document type Definition | |
Document type declaration | |
Document transfer definition | |
Document type language |
Question 12 |
Which of the following statements is/are TRUE ?
(a) In HTML, character entities are used to incorporate external content into a web page, such as images.
(b) Once a web server returns a cookie to a browser, the cookie will be included in all future requests from the browser to the same server.
(a) In HTML, character entities are used to incorporate external content into a web page, such as images.
(b) Once a web server returns a cookie to a browser, the cookie will be included in all future requests from the browser to the same server.
Only (a) is TRUE. | |
Only (b) is TRUE. | |
Both (a) and (b) are TRUE. | |
Neither (a) nor (b) is TRUE. |
Question 12 Explanation:
FALSE: Entities are used to display characters that have special HTML meaning, such as “<” and “>”.
FALSE: Once a web server returns a cookie to a browser, the cookie will be included in all future requests from the browser to the same server.
FALSE: Once a web server returns a cookie to a browser, the cookie will be included in all future requests from the browser to the same server.
Question 13 |
Which of the following statement(s) is/are TRUE regarding Java Servlets ?
(a) A Java Servlet is a server-side component that runs on the web server and extends the capabilities of a server.
(b) A Servlet can use the user interface classes like AWT or Swing.
(a) A Java Servlet is a server-side component that runs on the web server and extends the capabilities of a server.
(b) A Servlet can use the user interface classes like AWT or Swing.
Only (a) is TRUE. | |
Only (b) is TRUE. | |
Both (a) and (b) are TRUE. | |
Neither (a) nor (b) is TRUE. |
Question 13 Explanation:
TRUE: A Java Servlet is a server-side component that runs on the web server and extends the capabilities of a server.
FALSE: A Servlet can not use the user interface classes like AWT or Swing.
→ Servlets can respond to any types of requests, they most commonly implement web containers for hosting web applications on web servers and thus qualify as a server-side servlet web API.
FALSE: A Servlet can not use the user interface classes like AWT or Swing.
→ Servlets can respond to any types of requests, they most commonly implement web containers for hosting web applications on web servers and thus qualify as a server-side servlet web API.
Question 14 |
Consider the following HTML table definition:
<table border = 1>
<tr>
<td> colspan = 2> Text A </td>
</tr>
<tr>
<td> Text B </td>
<td> Text C </td*gt;
</tr>
<tr>
<td rowspan = 2> Text D </td>
</tr>
<tr>
<td> Text E </td>
<tr>
<td> Text F </td>
</tr>
</table>
The above HTML code would render on screen as:
<table border = 1>
<tr>
<td> colspan = 2> Text A </td>
</tr>
<tr>
<td> Text B </td>
<td> Text C </td*gt;
</tr>
<tr>
<td rowspan = 2> Text D </td>
</tr>
<tr>
<td> Text E </td>
<tr>
<td> Text F </td>
</tr>
</table>
The above HTML code would render on screen as:
 | |
 | |
 | |
 |
Question 14 Explanation:
Question 15 |
An XML document that adheres to syntax rules specified by XML 1.0 specification in that it must satisfy both physical and logical structured, is called:
Well - formed | |
Reasonable | |
Valid | |
Sophisticated |
Question 15 Explanation:
A well-formed document in XML is a document that "adheres to the syntax rules specified by the XML 1.0 specification in that it must satisfy both physical and logical structures".
Well formed documents requirements:
1. Content be defined.
2. Content be delimited with a beginning and end tag
3. Content be properly nested (parents within roots, children within parents)
Well formed documents requirements:
1. Content be defined.
2. Content be delimited with a beginning and end tag
3. Content be properly nested (parents within roots, children within parents)
Question 16 |
When destroy 0 method of servlet gets called?
The destroy 0 method is called only once at the end of the life cycle of a servlet. | |
The destroy 0 method is called after the servlet has executed service method. | |
The destroy 0 method is called only once at the end of the life cycle of a servlet. And destroy 0 method is called after the servlet has executed service method. | |
None of the given options
|
Question 17 |
FOR XML document to be valid
document need to be well-formed | |
document need to be validated against a DTD
| |
document need to be well-formed and document need to be validated against a DTD | |
document should contain valid data |
Question 18 |
Which of the following instruct the browser which style sheet to use
< xml-stylesheet type=”text/xsl” href=”cdxsl” > | |
< xml-stylesheet type=”text/xsl” xsl=’cd.xsl” > | |
< ’/xml-stylesheet type=”text/dsl” href=”cd.xsl”? > | |
< ?xml-styleshet type=”test/xsl” xsl=”cd.xsl”? >
|
Question 19 |
An alternative to Java Script is
VBScript | |
ASP, NET | |
JSP | |
None of the given options |
Question 20 |
Consider the following script:
< html >
< head >< title > JavaScript < title >< / head >
< body >
< script language-“JavaScript” >
var a=80
var b=(==80 ? “pass” : “fail”):
document, write(b)
< / script >
< / body >
< / html >
What will be the output of the above script?
pass | |
fail | |
80 | |
Error at line 6 |
Question 21 |
Match List-I with List-II:
Choose the correct option from those given below:
Choose the correct option from those given below:(a).(i), (b).(ii), (c).(iii), (d).(iv) | |
(a).(ii), (b).(i), (c).(iii), (d).(iv) | |
(a).(iv), (b).(iii), (c).(ii), (d).(i) | |
(a).(iii), (b).(iv), (c).(ii), (d).(i) |
Question 21 Explanation:
Frame attribute → To specify the side of the table frame that display border
The < frame > tag defines one particular window (frame) within a < frameset >.
Each < frame > in a < frameset > can have different attributes, such as border, scrolling, the ability to resize, etc.
< tr > tag → To enclose each row in a table.
The < tr > tag defines a row in an HTML table.
A < tr > element contains one or more or elements
Valign attribute → for vertical alignment of content in cell
< a > tag → To create link in HTML
The < frame > tag defines one particular window (frame) within a < frameset >.
Each < frame > in a < frameset > can have different attributes, such as border, scrolling, the ability to resize, etc.
< tr > tag → To enclose each row in a table.
The < tr > tag defines a row in an HTML table.
A < tr > element contains one or more
Valign attribute → for vertical alignment of content in cell
< a > tag → To create link in HTML
Question 22 |
Which tag is used to enclose any number of javascript statements in HTML document?
< code > | |
< script > | |
< title > | |
< body > |
Question 22 Explanation:
The < script > tag is used to define a client-side script (JavaScript).
The < script > element either contains scripting statements, or it points to an external script file through the src attribute.
Common uses for JavaScript are image manipulation, form validation, and dynamic changes of content.
The < script > element either contains scripting statements, or it points to an external script file through the src attribute.
Common uses for JavaScript are image manipulation, form validation, and dynamic changes of content.
Question 23 |
In Javascript, what does in NaN function do?
Return true, if the argument is not a number
| |
Return false, if the argument is not a number
| |
Return true, if the argument is a number
| |
None of the given options
|
Question 24 |
Apache Tomcat is a
Servlet
| |
Java program
| |
web server
| |
web server that is capable of running Java programs
|
Question 25 |
Which tag is used to display the numbered list?
< OL > < /OL > | |
< DL > < /DL >
| |
< UL > < /UL > | |
< LI > < /LI > |
Question 26 |
The most popular way to materialize XML document is to use
DTD
| |
XSLT
| |
HTML | |
SOAP |
Question 26 Explanation:
The most popular way to materialize XML document is to use XSLT ( eXtensible Stylesheet Language)
Question 27 |
Which is true to change the text colour to red?
< BODY BGCOLOUR=RED > | |
< BODY TEXT=RED > | |
< BODY COLOUR=RED > | |
None of the given options
|
Question 28 |
What are tags used for?
To replace paragraph i.e., p tags
| |
To logically divide the paragraphs | |
To logically divide the document
| |
To provide space between tables
|
Question 29 |
What are meta tags used for?
To store information usually relevant to browsers and search engines
| |
To only store information usually relevant to browsers
| |
To only store information about search engines
| |
To store information about external links
|
Question 30 |
What is the difference between XML and HTML?
HTML is used for exchanging data, XML is not | |
XML is used for exchanging data, HTML is not | |
HTML can have user defined tags, XML cannot
| |
XML is used for exchanging data, HTML is not (and) HTML can have user defined tags, XML cannot
|
Question 30 Explanation:
XML (Extensible Markup Language) and HTML (Hypertext Markup Language) are both markup languages used to structure and organize content, but they serve different purposes.
XML is a meta-language, meaning it defines the structure of data, while HTML is a presentation language, meaning it defines how data is displayed. XML is used to store and transport data, while HTML is used to create web pages.
XML is a meta-language, meaning it defines the structure of data, while HTML is a presentation language, meaning it defines how data is displayed. XML is used to store and transport data, while HTML is used to create web pages.
Question 31 |
Which one of the following allows the session to continue?
When a user quits a browser | |
When the user logs out and is invalidated by the servlet | |
When the session is timed out due to inactivity | |
When the user refreshes the browser and there is a persistent cookie |
Question 31 Explanation:
Except the last statement, in all remaining cases the session will be closed.
Question 32 |
Which mechanism in XML allows organizations to specify globally unique names as element tags in documents?
root | |
header | |
schema | |
namespace |
Question 33 |
PI in XML specification stands for _______.
priceless instruction | |
processing instruction | |
polymorphic inheritance | |
primary instruction |
Question 33 Explanation:
A Processing Instruction (PI) is an SGML and XML node type, which may occur anywhere in the document, intended to carry instructions to the application.
Processing instructions are exposed in the Document Object Model as Node.PROCESSING_INSTRUCTION_NODE, and they can be used in XPath and XQuery with the 'processing-instruction()' command.
Processing instructions are exposed in the Document Object Model as Node.PROCESSING_INSTRUCTION_NODE, and they can be used in XPath and XQuery with the 'processing-instruction()' command.
Question 34 |
Limitations of the XML Data Type are:
It cannot be compared or sorted. This means an XML data type cannot be used in a GROUP BY statement. | |
It cannot be used as a key column in an index. | |
The value() method of the XML data type returns a scalar value, so it can be specified anywhere where scalar values are allowed.
| |
All of the options. |
Question 34 Explanation:
Limitations of the xml Data Type:
Note the following general limitations that apply to the xml data type:
The stored representation of xml data type instances cannot exceed 2 GB.
It cannot be used as a subtype of a sql_variant instance.
It does not support casting or converting to either text or ntext. Use varchar(max) or nvarchar(max) instead.
It cannot be compared or sorted. This means an xml data type cannot be used in a GROUP BY statement.
It cannot be used as a parameter to any scalar, built-in functions other than ISNULL, COALESCE, and DATALENGTH.
It cannot be used as a key column in an index. However, it can be included as data in a clustered index or explicitly added to a nonclustered index by using the INCLUDE keyword when the nonclustered index is created.
XML elements can be nested up to 128 levels.
Note the following general limitations that apply to the xml data type:
The stored representation of xml data type instances cannot exceed 2 GB.
It cannot be used as a subtype of a sql_variant instance.
It does not support casting or converting to either text or ntext. Use varchar(max) or nvarchar(max) instead.
It cannot be compared or sorted. This means an xml data type cannot be used in a GROUP BY statement.
It cannot be used as a parameter to any scalar, built-in functions other than ISNULL, COALESCE, and DATALENGTH.
It cannot be used as a key column in an index. However, it can be included as data in a clustered index or explicitly added to a nonclustered index by using the INCLUDE keyword when the nonclustered index is created.
XML elements can be nested up to 128 levels.
Question 35 |
How to specify the comment in the XML document?
< ?- -- > | |
< !-- --! > | |
< !-- -- > | |
< /-- -- > |
Question 35 Explanation:
The syntax for writing comments in XML is similar to that of HTML:
< !-- This is a comment -->
< !-- This is a comment -->
Question 36 |
Which of the following tag is used intended for navigation in HTML5?
nav | |
footer | |
section | |
navigation tag |
Question 36 Explanation:
The < nav > tag defines a set of navigation links.
Notice that NOT all links of a document should be inside a < nav > element. The < nav > element is intended only for major blocks of navigation links.
Browsers, such as screen readers for disabled users, can use this element to determine whether to omit the initial rendering of this content.
Notice that NOT all links of a document should be inside a < nav > element. The < nav > element is intended only for major blocks of navigation links.
Browsers, such as screen readers for disabled users, can use this element to determine whether to omit the initial rendering of this content.
Question 37 |
Which element is used to define discrete unit of content such as a blogpost, comment and so on?
section | |
class | |
article | |
none of the options |
Question 38 |
Which of the following is correct Content-Type header that a server side script should send for SSE in HTML5?
Content-Type: text/event-stream | |
Content-Type: text/ application-stream | |
Content-Type: text/data-stream | |
None of the options |
Question 39 |
_________ is automatically loaded and operates as part of browser.
Add-ons | |
Plug-ins | |
Utilities | |
Widgets |
Question 39 Explanation:
Plug-ins is automatically loaded and operate as part of the browser.
Question 40 |
Term in the MVC architecture that receives events is called ______.
Receiver | |
Controller | |
Transmitter | |
Modulator |
Question 40 Explanation:
Term in the MVC architecture that receives events is called Controller.
Question 41 |
Adding the style attributes in HTML elements, is known to be ______.
Internal | |
Inline | |
Outline | |
External |
Question 41 Explanation:
CSS can be added to HTML documents in 3 ways:
Inline - by using the style attribute inside HTML elements
Internal - by using a < style > element in the < head > section
External - by using a < link > element to link to an external CSS file
The most common way to add CSS, is to keep the styles in external CSS files.
Inline - by using the style attribute inside HTML elements
Internal - by using a < style > element in the < head > section
External - by using a < link > element to link to an external CSS file
The most common way to add CSS, is to keep the styles in external CSS files.
Question 42 |
If we don’t want to allow a floating div to the left side of an element, ______ CSS property will we use.
margin | |
clear | |
float | |
padding |
Question 42 Explanation:
The clear property specifies on which sides of an element floating elements are not allowed to float.
Syntax: clear: none|left|right|both|initial|inherit;
Syntax: clear: none|left|right|both|initial|inherit;
Question 43 |
_____ CSS property allows you to wrap a block of text around an image.
wrap | |
push | |
float | |
align |
Question 44 |
What does < main > include?
Header | |
Sidebar | |
Article | |
Footer |
Question 44 Explanation:
Answer can be option A also. Main tag contains the content that is main and unique to the document and is not repeated such as sidebar etc. Header can be in the main tag.
Question 45 |
Which of the following constructs is not supported by Java Server Pages?
JSP Directives | |
JSP Scriptlets | |
JSP Actions | |
JSP Reaction |
Question 46 |
The default character encoding in HTML5 is ______.
UTF-16 | |
UTF-32 | |
UTF-8 | |
ISO-8859-1 |
Question 46 Explanation:
For HTML5, the default character encoding is UTF-8.
This has not always been the case. The character encoding for the early web was ASCII.
This has not always been the case. The character encoding for the early web was ASCII.
Question 47 |
Which of the following statements regarding XML is/are TRUE?
(A) XML is a set of tags designed to tell browsers how to display text and images in a web page.
(B) XML defines a syntax for representing data, but the meaning of data varies from application to application.
(C) < Letter >, < LETTER > and < letter > are three different tags in XML
Choose the correct answer from the options given below:
(A) and (B) only | |
(A) and (C) only | |
(B) and (C) only | |
(A), (B) and (C) |
Question 47 Explanation:
-XML was designed to carry data - with focus on what data is
-HTML was designed to display data - with focus on how data looks
→ FALSE: HTML is a set of tags designed to tell browsers how to display text and images in a web page.
→ TRUE
-HTML was designed to display data - with focus on how data looks
→ FALSE: HTML is a set of tags designed to tell browsers how to display text and images in a web page.
→ TRUE
Question 48 |
In HTML, < map > tag is used for
defining a path between two nodes in an image | |
defining clickable region in an image
| |
highlighting an area in an image | |
defining the site-map of a web-site |
Question 48 Explanation:
The HTML < map > element is used with < area > elements to define an image map (a clickable link area).
Question 49 |
Discovery of cross sales opportunities is called as _____.
Association | |
Visualization | |
Correlation | |
Segmentation |
Question 49 Explanation:
→ Association rule learning is a rule-based machine learning method for discovering interesting relations between variables in large databases. It is intended to identify strong rules discovered
in databases using some measures of interestingness.
→ This rule-based approach also generates new rules as it analyzes more data. The ultimate goal, assuming a large enough dataset, is to help a machine mimic the human brain’s feature extraction and abstract association capabilities from new uncategorized data.
→ This rule-based approach also generates new rules as it analyzes more data. The ultimate goal, assuming a large enough dataset, is to help a machine mimic the human brain’s feature extraction and abstract association capabilities from new uncategorized data.
Question 50 |
Which of the following functions is used to trim the leading as well as trailing spaces of a string in VBScript?
Ltrim | |
Trim | |
Space | |
Replace |
Question 50 Explanation:
The Trim function removes spaces on both sides of a string.
Trim(string)
Trim(string)
There are 50 questions to complete.