Exam DEA-1TT5 topic 1 question 12 discussion

NVMe-based flash drives used in intelligent storage systems take advantage of the parallelism of modern CPUs and SSDs

Storage Class Memory A data center is only as fast as its slowest link. For the past 50 years, Moore’s law has continued to deliver faster and faster processors; however, the storage side has struggled to keep up. Historically, innovation in storage came gradually: first there were magnetic tapes, and then came spinning hard disk drives (HDDs) with their mechanically limited speeds. The last big leap was the adoption of NAND Flash SSDs, which cut the latency from milliseconds to microseconds. Another development was the adoption of NVMe as the default SSD interface instead of SAS.

Something like an M.2 card is considered an SCM devices that uses the NVMe protocol and interfaces with the controllers via the PCIe interface

I have a problem with this question and the answers available. 1. NVMe is a protocol, not an interface. 2. NVMe utilizes PCIe interface In the official curriculum though I did find: Another development was the adoption of NVMe as the default SSD interface instead of SAS. -and- The shift from SATA to faster interfaces such as SAS and PCI-Express using the NVMe protocol has made SSDs much faster...... So while NVMe certainly is the only that really fits this and is considered and SCM device, NVMe is once again a protocol and uses the PCI-Express interface

An intelligent storage system is designed for performance, scalability, and availability. They included features that make them well suited for modern data center applications. - So NVMe for better performance