Short Answer Questions

(Write 1-2 Sentences when answering each question.)

1) HTML and CSS

What is the difference between HTML and HTML 5 with respect to how pages are formatted?

2) W3C, Web 2.0 and CMS

Which of the information that is stored in Apache access log files can be used to trace users. How can this information be used for tracing users?

4) HTTP Protocol and Server-Side Basics

Can sessions be established even if a user has cookies and Javascript turned off? If yes, explain how.

5) Regular Expressions

5.1) Consider the regular expression 
/<.*>/
What problem occurs if this expression is used to delete tags from HTML and how can this problem be solved?

6) Web Graphics

6.1) A company wants to generate ER diagrams from their databases and wants to publish them on the web. What graphics format could be used to display the diagrams on web pages? What software tools would be involved in creating the diagrams: list all required tools starting with the database software.

6.2) Write SVG-like tags for a stop sign. Since you don't have the SVG documentation available, you are allowed to invent the tag names and attributes used in the tags. You can leave the attribute values empty apart from the colour attributes. Include only the tags for the stop sign, not the general tags that are at the start of every SVG document.

7) XML

7.1) The following XML document is not well-formed. List as many mistakes as you can find. 
<furniture id=1> 
<chair size=3 legs=4> 
</furniture> 
<furniture id =2> 
<table size =10 legs=4>large & small</table> 
</furniture>

7.2) Is this XML document valid? If not, state why. 

<?xml version="1.0" ?> 
<!DOCTYPE hello [ 
<!ELEMENT World EMPTY> 
<!ELEMENT b (#PCDATA)> 
<!ELEMENT hello (#PCDATA | World | b | doc)*> 
<!ELEMENT doc (doc?)> 
]> 
<hello> 
<World/>This <doc><doc/></doc> is 
<b>very</b> < well formed >. 
</hello>

7.3) With respect to an XHTML document, write the DOM statements that print the content of the first child node of text in italics. (Since you don't have the DOM documentation with you, it does not matter if you do not remember the exact names of the statements. You can invent statements as long as they are DOM-like).

7.4) How does SAX handle Unicode?

9) Web Security

9.1) Does the following code allow or prevent SQL injection? Briefly explain why. 
$item = htmlentities($_REQUEST["input"]); 
$query = "select price from sales where item = ". $item; 
$result = mysql_query($query);

9.2) Which of the following does not pose a direct security risk for the server:

Explain your answer.

10) AJAX

10.1) Would it be possible to implement AJAX without using Javascript? What about JSON, is that possible without Javascript? Provide a reason for your answers.

11) Unicode, XSL and HTML5

11.1) Is &#x9755; Unicode, UTF-8, a font or something else? If it isn't Unicode, what is the Unicode code for the character it is meant to represent?

12) Web Services

12.1) The following lines are from a WSDL file. What is the name of the method that is transmitted? 
<message name='ProductRequest'> 
<part name='Product' type='xsd:string'/> 
</message> 
... 
<portType name='ProductPortType'> 
<operation name='ProductSelection'> 
<input message='tns:ProductRequest'/> 
... 
</operation> 
</portType>

Essay-Style Questions