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Difficulty: HardNetwork Types and Topologies

A systems administrator is reviewing network architecture specifications for a newly constructed data hall. The architecture includes a dedicated high-speed Fibre Channel network dedicated to block-level storage transfers between server nodes and disk arrays within the facility. Additionally, peripheral telemetry sensors monitoring cabinet thermal conditions transmit data over short-range Bluetooth links operating within a two-meter radius around each rack. Which of the following network scope classifications correctly identifies the block-level storage architecture and the cabinet telemetry sensor architecture, respectively?

  1. SAN (Storage Area Network) for the block-level storage architecture, and PAN (Personal Area Network) for the cabinet telemetry sensor architectureAnswer
  2. B
    LAN (Local Area Network) for the block-level storage architecture, and WLAN (Wireless Local Area Network) for the cabinet telemetry sensor architecture
  3. C
    MAN (Metropolitan Area Network) for the block-level storage architecture, and LAN (Local Area Network) for the cabinet telemetry sensor architecture
  4. D
    WAN (Wide Area Network) for the block-level storage architecture, and PAN (Personal Area Network) for the cabinet telemetry sensor architecture

Answer

The block-level storage network is classified as a SAN (Storage Area Network), while the short-range Bluetooth telemetry sensor network is classified as a PAN (Personal Area Network).
Storage Area Networks (SANs) are high-speed, dedicated networks providing block-level network access to storage arrays. Personal Area Networks (PANs) provide ultra-short-range communication (such as Bluetooth) between devices centered around a single rack or workspace. Therefore, SAN and PAN correctly categorize the storage fabric and telemetry sensors, respectively.

Step-by-Step Solution

1
Analyze the primary network requirement for storage interconnectivity.
The scenario describes a dedicated high-speed Fibre Channel network for block-level storage access between servers and disk arrays.
Networks optimized specifically for block-level data storage accessibility independent of the main local network fall under the SAN (Storage Area Network) classification.
2
Analyze the secondary network requirement for rack sensor communication.
The telemetry sensors communicate over short-range Bluetooth links within a localized two-meter boundary around individual racks.
Low-power, short-range peripheral communications operating within a immediate personal/device radius (typically under 10 meters) are classified as a PAN (Personal Area Network).
3
Synthesize the classifications to select the correct paired response.
Storage architecture = SAN; Telemetry sensor architecture = PAN.
This accurately matches both specialized scope definitions without misclassifying geographically confined storage fabrics as LAN/WAN/MAN or ultra-short-range Bluetooth links as WLAN/LAN.

Key Concept

Geographic and Functional Network Classifications (SAN vs. PAN vs. LAN vs. WAN)
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Topics

Network Types and Topologies

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