The answer said that Line 11 and Line 13 are not valid elements in the http://java.sun.com/JSP/Page namespace. I don't understand what the namespace effects the jsp action tags. And line 12 <jsp irective.page> looks strange to me.
The namespace http://java.sun.com/JSP/Page is used for JSP standard actions. There is no jsp:import, nor jsp:page standard actions. Please refer to the spec., JSP.5. Standard Actions.
The jsp:directive.page element is used for JSP documents (xml), and has the same meaning as the page directive <@ page> in jsp pages. Please refer to "JSP.6.3.4 The jsp irective.page Element" for details.
For the exam, you have to remember which standard actions there is. Good luck. [ August 21, 2006: Message edited by: Satou kurinosuke ]