Which memory conservation technique collaborates with the server to reclaim pages that are considered least valuable by the guest operating system?
A.
Transparent Page Sharing
B.
Memory Balloon Driver
C.
Ram Overcommit
D.
VMkernel Swap
Explanation:
By default the balloon driver is used to reclaim idle memory. The balloon driver is in fact used as some operating systems only update there internal free memory map.
Source: http://www.yellow-bricks.com/2010/03/11/mem-idletax/