You and another tech are discussing the relative merits of S

You and another tech are discussing the relative merits of SCSI interfaces. You say that SCSI is dead, at least as far as drives go, and has been replaced by SAS and SATA. Your coworker says that SCSI has evolved and still has valid technical applications in today’s computing environment. Which modern applications does she say SCSI currently possesses?

A. SCSI now can use serial as well as parallel interfaces.

B. SCSI now uses TCP/IP as a transport mechanism.

C. Some motherboard manufacturers still market SCSI interfaces supporting PCI Express and PCI-X.

D. SCSI Ultra-5 (parallel) now supports as 64-bit data width.

Solution

A and C. Although SCSI parallel (SPI) interfaces are still common, they are being replaced by Serial Attached SCSI (SAS), which retains the original SCSI technology but employs a serial design. Very few companies still market SCSI interfaces for motherboards supporting PCIe and PCI-X (PCI-X is a double-wide version of the PCI bus that satisfies the higher bandwidth requirements of servers).