Choosing a versatile LAN architecture: Jim wants the network architecture that offers the most cabling/topology flexibility and multiple data rates for growth. Which architecture provides the widest range of options?

Difficulty: Easy

Token-Ring because it runs at 4 Mbps and 16 Mbps and fits any topology
Ethernet, because it is cabled only with fiber-optic cable
Token-Ring, because it uses a MAU
Ethernet, because it supports many topologies and a wide range of speeds
Neither Token-Ring nor Ethernet; only ARCnet fits all topologies

Correct Answer: Ethernet, because it supports many topologies and a wide range of speeds

Explanation:

Introduction / Context:
Selecting a LAN architecture involves considering topology flexibility, media options, and upgrade paths. Over time, Ethernet has evolved from shared coaxial bus to switched star topologies on copper and fiber, scaling through multiple speed generations while remaining widely interoperable and cost-effective.

Given Data / Assumptions:

Desire for flexibility in physical layout (star, tree, aggregations with switches).
Need for multiple speed options for future growth.
Broad availability of components and support.

Concept / Approach:
Modern Ethernet supports twisted pair and fiber, structured cabling (star with switches), and speeds ranging from 10/100/1000 Mbps to multi-gig and 10G/40G/100G+. Its ubiquity ensures diverse NICs, switches, and transceivers. Token-Ring, by contrast, depends on ring/MAU topology and is largely obsolete.

Step-by-Step Solution:

1) Compare topologies: Ethernet works best in switched star and scales hierarchically.2) Compare speeds: Ethernet supports many standardized rates.3) Compare ecosystem: Ethernet dominates the market, ensuring interoperability and availability.4) Choose Ethernet for maximum options.

Verification / Alternative check:
Review common enterprise deployments: structured cabling with Ethernet switches is the norm, from small offices to data centers.

Why Other Options Are Wrong:

Token-Ring at 4/16 Mbps does not “fit any topology” and is obsolete.Ethernet is not fiber-only; copper is common (Cat5e/Cat6/Cat6A).Using a MAU does not make Token-Ring broadly flexible.ARCnet is niche and dated, not the preferred universal choice.

Common Pitfalls:
Equating legacy coax bus with modern Ethernet; overlooking that switching eliminated collisions and expanded topological flexibility.

Final Answer:
Ethernet with multiple topologies and speeds.

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Choosing a versatile LAN architecture: Jim wants the network architecture that offers the most cabling/topology flexibility and multiple data rates for growth. Which architecture provides the widest range of options?

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