Which three are true about servlet filters? (Choose three.)
A.
A filter must implement the destroy method.
B.
A filter must implement the doFilter method.
C.
A servlet may have multiple filters associated with it.
D.
A servlet that is to have a filter applied to it must implement the
javax.servlet.FilterChain interface.
E.
A filter that is part of a filter chain passes control to the next filter in the chain by invoking the
FilterChain.forward method.
F.
For each <filter> element in the web application deployment descriptor, multiple instances of a
filter may be created by the web container.
Explanation: