SG0-001 · Question #225
Which of the following are common data rates for SAS traffic?
The correct answer is C. 1.5Gb/s, 3Gb/s, 6Gb/s, 12Gb/s. This question asks to identify the standard data transfer rates for Serial Attached SCSI (SAS) interfaces.
Question
Which of the following are common data rates for SAS traffic?
Options
- A532Mb/s,1064Mb/s
- B100Mb/s,1Gb/s, 10Gb/s, 100Gb/s
- C1.5Gb/s, 3Gb/s, 6Gb/s, 12Gb/s
- D1Gb/s, 2Gb/s, 8Gb/s, 16Gb/s
How the community answered
(47 responses)- B4% (2)
- C94% (44)
- D2% (1)
Why each option
This question asks to identify the standard data transfer rates for Serial Attached SCSI (SAS) interfaces.
These are not standard or common data rates for SAS technology.
These rates are more commonly associated with Ethernet standards rather than SAS interfaces.
SAS technology has evolved through several generations, with each generation doubling the data transfer rate per lane. The common data rates for SAS are 1.5 Gb/s (SAS-1), 3 Gb/s (SAS-2), 6 Gb/s (SAS-2.1 or SAS-3), and 12 Gb/s (SAS-3), which align with the specified option. These rates represent the full duplex speed per port.
While some of these rates appear in other technologies, they are not the standard, common data rates for SAS.
Concept tested: SAS data rates and generations
Source: https://www.snia.org/education/what-is-storage/sas
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