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Zorluk: ZorNetwork Types and Topologies

A field technician is evaluating the infrastructure requirements for a financial firm expanding its presence in a city. The firm needs a high-speed fiber-optic network link connecting two corporate buildings located 12 miles apart across the metropolitan area. Additionally, the network engineering team must interconnect two distinct IP subnets (192.168.10.0/24192.168.10.0/24 and 192.168.20.0/24192.168.20.0/24) within the primary facility to allow routed communication between departments. Which network scope classification applies to the inter-building connection, and which networking device is required to enable communication between the two subnets?

  1. Metropolitan Area Network (MAN) for the inter-building link, and a Layer 3 router for inter-subnet communicationCevap
  2. B
    Local Area Network (LAN) for the inter-building link, and an unmanaged Layer 2 switch for inter-subnet communication
  3. C
    Wide Area Network (WAN) for the inter-building link, and an unmanaged Layer 2 switch for inter-subnet communication
  4. D
    Personal Area Network (PAN) for the inter-building link, and a Layer 3 router for inter-subnet communication

Cevap

The connection across a 12-mile city span is classified as a Metropolitan Area Network (MAN), and interconnecting two distinct IP subnets requires a Layer 3 router.
A Metropolitan Area Network (MAN) is specifically designed to interconnect locations across a city or town geographic radius (such as 12 miles). Furthermore, connecting separate IP subnets (Layer 3 network boundaries) requires a router or Layer 3 device capable of processing IP packet headers.

Adım Adım Çözüm

1
Analyze the geographic scope requirement for the inter-building link.
A 12-mile connection spanning across a single city/metropolitan region fits the definition of a Metropolitan Area Network (MAN), as it is larger than a single facility LAN and smaller than a broad regional WAN.
Geographic scope classifications are defined by distance bounds: PAN (<10m), LAN (single building/site), MAN (city/town scale), WAN (regional/global).
2
Analyze the routing and boundary requirements between the subnets 192.168.10.0/24 and 192.168.20.0/24.
Traffic moving between two distinct Layer 3 IP subnets requires a device capable of evaluating IP headers and making routing decisions.
Layer 2 switches forward traffic based on Ethernet MAC addresses within a single broadcast domain. A Layer 3 router or Layer 3 switch is necessary to cross logical IP subnet boundaries.
3
Combine the scope classification and hardware requirements to identify the correct option.
The correct combination is MAN for the geographic scope and a Layer 3 router for inter-subnet connectivity.
This option correctly satisfies both the distance classification criteria and the OSI Layer 3 routing requirements.

Anahtar Kavram

Network Scope Classifications (MAN vs. LAN/WAN/PAN) and Layer 3 Routing Boundaries
Tahmini Süre:1m 30s
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Konular

Network Types and Topologies

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