200-155 · Question #172
Which two descriptions of a Cisco UCS I/O Module are true?
The correct answer is A. connects a fabric interconnect to a blade server D. extends the fabric access layer to a server. Cisco UCS I/O Modules (IOMs) are internal chassis components that facilitate communication between blade servers and the fabric interconnects, extending the UCS fabric access layer to the servers.
Question
Which two descriptions of a Cisco UCS I/O Module are true?
Options
- Aconnects a fabric interconnect to a blade server
- Bprovides centralized log management
- Cconnects a fabric interconnect and a Layer 3 switch
- Dextends the fabric access layer to a server
- Econnects a Cisco UCS server to a WAN optimizer
How the community answered
(47 responses)- A94% (44)
- B4% (2)
- C2% (1)
Why each option
Cisco UCS I/O Modules (IOMs) are internal chassis components that facilitate communication between blade servers and the fabric interconnects, extending the UCS fabric access layer to the servers.
The I/O Module resides within a UCS chassis and provides the physical link between the blade servers housed in that chassis and the upstream Fabric Interconnects.
I/O Modules are network devices for connectivity, not for centralized log management, which is typically handled by UCS Manager or dedicated logging solutions.
I/O Modules connect to Fabric Interconnects; the Fabric Interconnects then connect to external Layer 3 switches, not the IOM directly.
IOMs function as fabric extenders (FEX) within the UCS architecture, extending the unified fabric from the Fabric Interconnects directly to the individual blade servers, integrating them into the fabric access layer.
I/O Modules are integral to the UCS chassis fabric and do not connect UCS servers directly to external WAN optimizers.
Concept tested: Cisco UCS I/O Module function and role
Source: https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/hw/components/reference/ucs_components.html
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