Consider the following definition of "EventJounral":

EventJournal $($EventID$,$ EventName, EventWebLink, JournalName, Publisher, PrintOROnline, PRIMARY KEY $($EventID$))$

Describe the following terms by using the above table as an example. Use of example from the above table is necessary to get the credit:

$[44$ x $1$ Marks$]$

Primary Index, Clustering Index, Secondary Index, Multilevel Index, Bitmap Index