What happens to synchronous writes after they land in DRAM?

What happens to synchronous writes after they land in DRAM?
A. They are acknowledged as complete to the client immediately.
B. They are acknowledged only after they are persistently stored on disk or flash.
C. They are acknowledged only after they are persistently stored in DRAM on the opposite cluster node.
D. They are acknowledged only after they are persistently stored on disk or flash from the opposite cluster node.

Download Printable PDF. VALID exam to help you PASS.