Drag and Drop Question Drag and drop the Cisco UCS components from the left onto the corresponding functionalities on the right. Answer:

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Explanation

Cisco UCS Component Functionalities - Drag & Drop Explained

Note: The question omits the right-side functionality labels. The explanation below is based on the standard Cisco UCS architecture roles that map to this ordering in typical exam questions.

The Architecture at a Glance

Cisco UCS uses a hierarchical architecture: management/switching → compute → connectivity extension → adapter virtualization. The arrangement follows this top-down logical flow.

Item-by-Item Breakdown

1. Fabric Interconnects → Central Management & Switching

Fabric Interconnects (FIs) are the brain and backbone of a UCS domain. They:

• Act as the single point of management for all UCS components
• Provide Ethernet and Fibre Channel switching
• Host Cisco UCS Manager

They go first because everything else in UCS is subordinate to them.

Common mistake: Confusing FIs with standard LAN switches. FIs are purpose-built UCS management + switching devices, not general-purpose switches.

2. Servers → Compute Resources

Servers (blade or rack) provide CPU and memory to run workloads. They are the target of all policy and connectivity that the FIs manage.

Common mistake: Assuming servers operate independently - in UCS, servers are always managed through the FI; they have no out-of-band management of their own.

3. Fabric Extenders → Chassis-to-FI Connectivity

Fabric Extenders (FEX / I/O Modules) extend the FI fabric down into blade chassis or to rack servers. They act as remote line cards of the FI - they have no independent switching logic.

Common mistake: Treating FEX as a switch. They forward all decisions upstream to the FI; they do not make local switching decisions.

4. Virtual Interface Cards (VIC) → Adapter Virtualization

VICs (e.g., Cisco UCS VIC 1340) sit inside the server and virtualize the physical adapter into multiple virtual NICs and HBAs via software policy. This enables stateless computing - the server's identity (MAC, WWN, boot policy) is defined in UCS Manager, not burned into hardware.

Common mistake: Confusing VICs with standard NICs. VICs are programmable and their interfaces are entirely defined by UCS service profiles, not hardware.

Summary Table

The ordering reflects the dependency chain: FIs manage everything → servers need connectivity → FEX provides that link → VICs present virtual interfaces to the server OS.

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