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Which memory conservation technique allows the secure elimination of redundant copiesof memory pages between v

Which memory conservation technique allows the secure elimination of redundant copies
of memory pages between virtual machines on the host?

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A.
Memory Balloon Driver

B.
VMkernel Swap

C.
RAM Overcommit

D.
Transparent Page Sharing

Explanation:
Memory Provisioning Recommendations for VMware Infrastructure 3 Operational Best
Practices page 7.
Transparent Page Sharing is a process executed frequently by the VMkernel that scans
physical memory to identify redundant virtual machine memory pages. When a match is
found, the physical page is marked read-only. The VMkernel removes the duplicate page
from physical RAM and the page table is adjusted to redirect the virtual machine’s virtual
page back to the read-only page in physical RAM. This mechanism results in increasing
memory that is shared among running virtual machines over time.

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