Physical interfaces, cabling media, Ethernet links, and Power over Ethernet

3 quick checks≈2% of the testFoundational

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By the end you’ll be able to

Identify common physical Ethernet interfaces and media types used on network devices and endpoints, including copper and fiber connections.
Differentiate major cabling categories and connector/media characteristics at a foundational level, including twisted-pair copper versus fiber-optic cabling and their typical use cases.

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Explain the purpose and operation of Power over Ethernet (PoE), including delivering electrical power over Ethernet cabling to devices such as IP phones, wireless access points, and cameras.

Distinguish PoE-related terminology and behavior at a foundational level, including powered device and power sourcing equipment roles.

Interpret basic interface information to determine whether the chosen medium or power method is appropriate for the connected device.

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