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31 Days Before Your CCENT Certification by Scott Bennett

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Day 31: Network Components and Operation

The following list and Table 1-1 describe network device purposes at each layer of a three-layer hierarchical model:

Access layer devices connect hosts on a local-area network (LAN) to provide access for users.

Distribution layer devices provide connectivity between LANs.

Core layer devices provide high-speed connectivity between distribution layer devices.

Table 1-1. Networking Devices and Their Purposes

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