Question

1) In the XPath data model, a root node represents _______________?
a) the document itself
b) all within the XML declaration
c) all the information within a particular namespace
d) the root element
2) What is not a valid XPath data model node?
a) Element
b) Root
c) Attribute
d) Text
e) Document type declaration
3) which of the following lines is the abbreviated syntax of attribute::attributename?
a) %Cattributame
b) &attributename
c) @attributename
d) #attributename
4) Axes are used to _____.
a) evaluate conditions
b) generate output trees
c) navigate node trees
d) select nodelists
5) The bracket in the following is an example of _______.
//Section[@security="public"][@version="final"]
a) using expressions
b) using predicates
c) using nested properties
d) using funtions
6)The proper structure of Xpath expressions includes ______.
a) an axis, node test,optional function
b) an axis, node test, function
c) an axis, node test, optional predicate
d) an axis, node test, predicate
7) The input power to an XSLT processor is called the _________.
a) input hierarchy
b) input transformation
c) input serialization
d) input tree
8) XSLT processor can retrieve data based upon which of the following?
a) xsl:templates and match elements
b) xsl:templates elements and its match attribute
c) xsl:templates attribute and match element
d) xsl:templates and match attributes

9) Which statement best describes the benefit of using the following code with SAX?
public class MyClass extends Default Handler

a) By extending the Default Handler we have access to all the method defined in the SAX Interfaces
b) By extending the DefaultHandler we can implement all the methods defined in the interfaces
c) By extending the DefaultHandler we have access to all the methods defined in the ContentHandler interface.
d) By extending the DefaultHandler we can selectively choose which methods defined in the interfaces to implement,

10) Which of the following statements does not offer a good reason to use SAX?

a) It's simple: you need to implement only three or perhaps four interfaces to get going
b) The parser itself typically has a smaller footprint than that of its DOM cousin. In fact, DOM implementations are often built on the top of SAX
c) SAX programming requires fairly intricate state keeping
d) It's quick because it doesn't need to read in the whole document before you start work on it

11) How many startDocument events and how many startElement events will be fired when the following XML
SAX parser?
<a>
<b q='yyy'>zzz</b>
<c>nnn</c>
<d>ppp</d>
</a>
a) O startDocument events and 4 startElement events
b) O startDocment events and 3 startElement events
c) 1 startDocment events and 4 start Element events
d) 1 startDocment events and 3 startElement events

12) SAX was developed to work with data that is too large to remain resident in memory
a) True
b) False

13) SVG output is bitmapped like JPEG and GIF
a) True
b) False

14) Which statement about SVG is not true?
a) SVG is an XML application.
b) SVG can be enlarged without pixelation.
c) SVG works very well with photographic images
d) SVG usually has a smaller file size

Answer 1

1) Option A - the document itself

Explanation: The XML document in XPath is always parsed/considered as a tree with 7 various nodes. Out of these 7 different nodes, one node is the root node which represents the document itself. However, the root node further has different children such as comments, processing instructions, root element, etc.

Other options are incorrect because they all are represented by other nodes and not the root node.

2) Option E - Document type declaration

Explanation: As already told in the above part's explanation, the XML document is parsed as a tree by the XPath model. This tree has the following 7 valid nodes:

1. root node
2. element node
3. attribute node
4. text node
5. comment node
6. processing instructions node
7. namespace node

Hence, it is clear from the above 7 nodes that document type declaration is not a valid node in XPath data model.

3) Option C - @attributename

Explanation: Any attribute in the XPath data model can be easily selected/retrieved and hence can be accessed by using @ followed by the attribute name of the element. Hence, it is written as @attributename. This is same and actually the abbreviation of the syntax:

attribute::attributename

which does the same job of selecting an element and accessing it.

4) Option D - select nodelists

Explanation: The Axes in XPath are basically used to define the relationship between the selected nodes and the current node. In simple words, axes are used to locate and select nodes relative to a current node in the tree. Note that nodes here refers to a nodelist which may contain multiple nodes. For example, an axis can be used to select nodes in the tree that are a child of a current node, ancestors of that node, nodes following a given node, descendant of a given node, etc. As we can see, all these are relationships of a given node with other nodes which are selected by using the axis. Hence, option D - select nodelists is the correct answer.