Which two key components make up an SSD?

The correct response identifies two essential elements of an SSD: the flash controller and NAND flash memory chips.

The flash controller functions as the brain of the SSD, managing the data flow between the host system and the NAND memory. It is responsible for executing commands from the host, reading and writing data, error correction, and wearing leveling, which helps prolong the lifespan of the NAND memory. Meanwhile, NAND flash memory chips are used to store the actual data. Unlike traditional Hard Disk Drives (HDD), which use mechanical movements to read and write data, SSDs rely entirely on these memory chips, enabling faster data access and improved storage efficiency.

The other options do not adequately represent the core components of an SSD. While options involving RAM might mention temporary data caching, it doesn't serve as a key component of SSDs in the same way that NAND memory and the flash controller do. Similarly, RAID options or HDD references do not relate directly to SSD architecture. Thus, the combination of the flash controller and NAND flash memory chips is pivotal in defining how SSDs operate and deliver performance advantages over traditional storage devices.