To reduce I/O operations , what’s are proposed in Exalogic

To reduce I/O operations , what’s are proposed in Exalogic

A.
JSP Compliler use buffer bytes instead static array buffers

B.
Servlets container uses byte buffer instead of temporary buffer

C.
JVM use byte buffer-aware streams instead of kernel level chunked streams

D.
Kernel reduce buffer placeing it over the heap

Explanation: