Which of the following types of RAM can be used in a dual channel configuration?

SDRAM (Single Data Rate SDRAM) is the older, single-channel predecessor to DDR and does not support dual channel operation.

RAMBUS (RDRAM) uses a proprietary narrow, high-speed bus architecture called the RIMM channel and does not use the dual channel pairing model used by DDR.

DDR (and its successors DDR2, DDR3, DDR4) supports dual channel mode, where two identical modules are installed in paired slots on the motherboard to effectively double the memory bandwidth by allowing simultaneous access to both modules. The memory controller must support dual channel and the modules must be matched in size and speed.

DIMM is a physical form factor (Dual Inline Memory Module) describing the connector type, not a memory technology - it does not define whether dual channel is supported.