Which memory DIMM technology combines DRAM memory with flash memory to allow data to be retained in
the event of power loss?

A.
LRDIMM

B.
RDIMM

C.
UDIMM

D.
NVDIM

Explanation:
A Non-Volatile Dual In-line Memory Module (NVDIMM) is a computer memory RAM DIMM that retains data
even when electrical power is removed either from an unexpected power loss, system crash or from a normal
system shutdown. NVDIMMs can be used to improve application performance,[1] data security, system crash
recovery time and to enhance SSD endurance and reliability.
There are two main types of NVDIMM cards: NVDIMM-F and NVDIMM-N.
NVDIMM-F is a Flash-only device that resides on the memory interconnect.
NVDIMM-N is a byte-addressable memory-mapped device, which is typically accessed at memory or nearmemory speeds. DDR4 NVDIMM-N cards are being sold by multiple hardware vendors and support is getting
wider.[4][non-primary source needed] These NVDIMM-N devices utilize DRAM for performance and endurance,
though are limited in capacity and result in higher costs due to the use of both DRAM and flash memory.
https://en.wikipedia.org/wiki/NVDIMM