I am preparing for java web component developer 6 exam . However, for topics below there isn't enough material in HFSJ .
More options for the Model
• Understand the roles of JDBC and JPA
• Understand fundamentals of connecting to a database using JDBC or JPA
Web application security
• Understand the role of JAAS in pluggable/extensible authentication for web applications
Please advice from where should we read these topics .
Also, how many questions can we expect on : annotations and asynchronous web applications . Yeah I know I cannot leave them but I am not very confident of materials outside HFSJ .