Sandra is working with an XML file containing product orders with the structure shown in the accompanying figure. She was just introduced to step patterns, and would like to incorporate them into the style sheet she is developing to display the orders data. She comes to you for help in developing expressions incorporating step patterns.
-Sandra would like to write an abbreviated expression to select the parent of the current context node. Which of the following do you tell her is the correct abbreviated expression?
A) .
B) ..
C) ../
D) *

Question

Sandra is working with an XML file containing product orders with the structure shown in the accompanying figure. She was just introduced to step patterns, and would like to incorporate them into the style sheet she is developing to display the orders data. She comes to you for help in developing expressions incorporating step patterns.
-Sandra would like to write an abbreviated expression to select the parent of the current context node. Which of the following do you tell her is the correct abbreviated expression?
A) . 
B) .. 
C) ../ 
D) *

Quizplus · Accepted Answer

The ".." step pattern selects the parent of the current context node, and the abbreviated expression for this is just a single dot, so the correct choice is B. A selects the current context node, * selects all elements, and ../ selects the parent of the parent of the current context node.

Sandra Is Working with an XML File Containing Product Orders