source: Exam Guide : David Bridgewater   There are 14 core library actions, divided into 4 groups 1. General Purpose : <c:out>, <c:set>,<c:remove> and <c:catch> 2. Conditional : <c:if>, <c:choose>, <c:when>, <c:otherwise> 3. Iteration : <c:forEach>, <c:forTokens> 4. URL Related :  <c:import>, <c:url>, <c:redirect>,<c:param>    S.No.  Core Libary Action  Attribute Name  Run Time Expression Allowed  Mandatory  Default Value  Type  1.  <c:out>  value  Yes  Yes  NA  Object   ...