Which of the following, with regard to the entire database, should be made on a regular basis?

What type of RAM is typically installed onto a motherboard and loses data rapidly, requiring it to be refreshed often?

A. SRAM B. CMOS RAM C. DRAM D. Flash RAM

What, in the context of pipelined processors, is a bubble and why is it detrimental to the performance of a pipelined processor?

What will be an ideal response?