In the OSI model, what three functional areas are addressed by physical layer standards? (Choose three.)

In the OSI model, what three functional areas are addressed by physical layer standards? (Choose three.)

• frame encapsulation
• error detection and retransmission
• encoding
• physical components
• signaling
• media access control

Explanation: The physical layer standards address three functional areas: physical components, encoding, and signaling. Frame encapsulation, media access control, and error detection and retransmission are services provided by the data link layer.

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