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Difficulty: HardNetwork Hardware Devices

Match each network hardware device to its primary operational function and deployment scenario within an enterprise infrastructure.

  • Managed Layer 3 SwitchInterconnects multiple local VLANs and makes packet-forwarding decisions based on IP addresses directly in hardware.
  • Unmanaged Layer 2 SwitchForwards frames within a single broadcast domain based on destination MAC addresses without support for custom configuration or management interfaces.
  • PoE InjectorAdds inline electrical power to a single copper Ethernet run connecting a legacy non-PoE switch port to an IP security camera.
  • Patch PanelActs as a passive structural hub that terminates solid-core horizontal cabling from workstation wall jacks inside an IDF/MDF rack.

Answer

Managed Layer 3 Switch matches with routing traffic between VLANs using IP addresses; Unmanaged Layer 2 Switch matches with plug-and-play frame forwarding based on MAC addresses; PoE Injector matches with adding inline power to a single non-PoE connection; Patch Panel matches with terminating permanent horizontal cabling runs in a equipment rack.
Each hardware device is accurately matched according to its physical deployment, OSI operating layer, and specific functionality within enterprise network architecture.

Step-by-Step Solution

1
Evaluate the functional scope of a Managed Layer 3 Switch.
Layer 3 switches inspect network layer headers to route traffic between distinct VLANs.
Hardware-based switching allows inter-VLAN routing without relying on a dedicated external router.
2
Evaluate the functional scope of an Unmanaged Layer 2 Switch.
Unmanaged Layer 2 switches forward traffic using MAC address tables within one local broadcast domain.
They lack management interfaces and cannot handle IP routing or VLAN tagging.
3
Identify the purpose of a midspan PoE Injector.
It combines power and data onto a single Ethernet cable for an endpoint device.
This provides inline DC power when connecting a powered device to a legacy non-PoE switch.
4
Determine the physical layer role of a Patch Panel.
It serves as a passive punch-down termination point for horizontal building cables.
It protects permanent building wiring from physical wear and simplifies cable management.

Key Concept

Operational roles and OSI layer functions of network hardware devices
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Topics

Network Hardware Devices

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