<?xml version = "1.0” encoding = "UTF-8"?> <root> <a> <b> <a/> <a/> </b> <b> <a/> </b> <b> <a/> <a> <b/> <b/> </a > <a/> </b> </a> </root>With respect to the given context node, marked in pink, evaluate the following axes on the tree. List the pre-identifier of each node that each axis returns. i. following::a ii. ancestor-or-self::node() iii. preceding-sibling::b

With respect to the given context node, marked in pink, evaluate the following axes on the tree. List the pre-identifier of each node that each axis returns. i. following::a ii. ancestor-or-self::node() iii. preceding-sibling::b [3 marks]

<?xml version = "1.0” encoding = "UTF-8"?> <root> <a> <b> <a/> <a/> </b> <b> <a/> </b> <b> <a/> <a> <b/> <b/> </a > <a/> </b> </a> </root>Write down the XML document that corresponds to this tree.

<?xml version = "1.0” encoding = "UTF-8"? > <doc> <a> <b> <a/> <a/> </b> <b> <a/> </b> <b> <a/> <a> <b/> <b/> </a > <a/> </b> </a> </doc> ) Convert each of the following queries into the corresponding XPath expression, and evaluate it on the tree by listing the pre-identifier of the nodes returned. i. For every element child m of some element node, and for every node n that is the third among all b-labelled element children of m, return the node that is the second among all element children for some descendant-or-self node of n.

Which node in a tree represents the generation of the node ?OptionsHeight of a nodeOrder of a nodeDegree of a nodeLevels of a node

In a Binary Expression Tree, what type of nodes are the leaf nodes typically?a)Operandsb)Parenthesesc)Operatorsd)R