Select two correct statements describing three-tier network topology.
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Correct answer: The distribution layer runs Layer 2 and Layer 3 technologies, The network core is designed to maintain continuous connectivity when devices fail.
Why this is the answer
The distribution layer acts as a boundary between the access and core layers. It aggregates access layer switches, performs routing (Layer 3) between VLANs, and implements policies like access control lists (ACLs), thus running both Layer 2 and Layer 3 technologies. The network core is designed for high-speed packet forwarding and redundancy, ensuring continuous connectivity even if a device fails, often through redundant links and devices. The access layer connects end devices and primarily operates at Layer 2, not managing routing between different domains. The core layer focuses on high-speed transport, not individual host connections. The core and distribution layers have distinct functions: distribution handles policy and routing for aggregated access traffic, while the core provides fast, resilient transport.
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