Home » HP » HPE0-J74 » Which device connects SAS initiators, expanders, and targets?
Which device connects SAS initiators, expanders, and targets?
A. backplane
B. expander
C. initiator
D. target
Correct Answer: B
Explanation/Reference:
The components known as Serial Attached SCSI Expanders (SAS Expanders) facilitate communication between large numbers of SAS devices. Expanders contain two or more external expander-ports. Each expander device contains at least one SAS Management Protocol target port for management and may contain SAS devices itself. For example, an expander may include a Serial SCSI Protocol target port for access to a peripheral device. An expander is not necessary to interface a SAS initiator and target but allows a single initiator to communicate with more SAS/SATA targets. A useful analogy: one can regard an expander as akin to a network switch in a network, which connects multiple systems using a single switch port.
References: https://en.wikipedia.org/wiki/Serial_Attached_SCSI#SAS_expanders
Download Printable PDF. VALID exam to help you PASS.
|
|