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Zorluk: Çok zorNetwork Hardware Devices

A network administrator is outfitting a remote Intermediate Distribution Frame (IDF) cabinet in an industrial facility. The IDF connects back to the Main Distribution Frame (MDF) via a single-mode fiber-optic link. The IDF must support high-power 802.3at Wireless Access Points (WAPs), provide local Layer 2 VLAN traffic segregation, and physically convert the inbound optical uplink to copper Ethernet for connection to local distribution hardware without performing IP routing at this location. Which of the following network hardware devices should be deployed in the IDF cabinet to meet these requirements? (Select TWO.)

  1. A managed Layer 2 Power over Ethernet Plus (PoE+) switchCevap
  2. A fiber-to-Ethernet media converterCevap
  3. C
    A Layer 3 router configured to handle inter-VLAN traffic routing and lease static IP addresses
  4. D
    An unmanaged switch connected to workstations utilizing Automatic Private IP Addressing (APIPA)

Cevap

The correct network hardware choices are a managed Layer 2 Power over Ethernet Plus (PoE+) switch and a fiber-to-Ethernet media converter.
To satisfy the deployment requirements, a fiber-to-Ethernet media converter converts incoming single-mode optical signals from the MDF fiber backhaul into copper Ethernet signals. Concurrently, a managed Layer 2 PoE+ switch provides 802.1Q VLAN tag support for logical network separation while supplying up to 30 Watts of power per port under the IEEE 802.3at standard to power high-draw access points.

Adım Adım Çözüm

1
Identify the media transition hardware requirement
A fiber-to-Ethernet media converter is necessary to bridge the MDF single-mode fiber optic line to local copper RJ-45 switch ports.
Ethernet switches in localized distribution racks often require optical-to-copper conversion when connecting to long-distance fiber backbones unless equipped with modular SFP slots.
2
Identify the local switching and power delivery requirement
A managed Layer 2 switch supporting IEEE 802.3at (PoE+) meets the requirement.
Managed switches allow configuring 802.1Q VLAN tags for traffic separation without performing Layer 3 routing, while 802.3at (PoE+) provides sufficient wattage for high-power wireless access points.

Anahtar Kavram

Selecting Network Hardware Devices for Media Conversion and Layer 2 VLAN/PoE Support
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Konular

Network Hardware Devices

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