SAS Protocol – Serial SCSI – 1

This set of multiple choice SAN storage questions and answers focuses on SAS (Serial Attached SCSI) protocol.

1. What is SAS?
a) Serial Attached SCSI
b) Storage Attached SCSI
c) Serial Advanced SCSI
d) SAS is not SCSI

2. Which of the following is true?
a) SAS is compatible with SATA physical layer
b) SAS is not parallel SCSI
c) SAS has multiple channels per port
d) All of the mentioned

3. SAS Domain can have:
a) 16256 devices in a single domain
b) 128 expanders per domain
c) 128 phys per expander
d) All of the mentioned

4. Which of the following is false?
a) SAS and SATA devices can’t be connected in the same system
b) SAS is a point to point protocol
c) Expanders are used to connect to multiple devices
d) None of the mentioned

5. Which of the following is false?
a) SAS devices can have narrow ports and/or wide ports
b) Expander port is a type of SAS port
c) Each SAS port has a SAS address
d) None of the mentioned

6. Which of the following is false?
a) SAS disk device with two phys can be a wide port
b) Expander device is not a SAS device
c) HBA having multiple ports can be configured to have wide and narrow ports
d) None of the mentioned

7. Which of the following is true for Expander device?
a) Expander device has a SAS address
b) Has expander ports
c) May contain SAS device
d) All of the mentioned

8. Which of the following is false?
a) Expander device has optional SMP initiator port
b) Expander device has optional SMP target port
c) Expander port can connect to SAS target device
d) Expander port can connect to another expander device

9. Which of the following layer is present in a SAS port?
a) Transport layer
b) Phy layer
c) Port layer
d) All of the mentioned

10. Which of the following protocol has slowest speed?
a) SATA
b) SAS
c) FC-AL
d) All of the mentioned