Which two statements are true about half-duplex and full-duplex communications? (Choose two.)

Which two statements are true about half-duplex and full-duplex communications? (Choose two.)

• Full duplex offers 100 percent potential use of the bandwidth.
• Half duplex has only one channel.
• All modern NICs support both half-duplex and full-duplex communication.
• Full duplex allows both ends to transmit and receive simultaneously.
• Full duplex increases the effective bandwidth.

Explanation: Full-duplex communication allows both ends to transmit and receive simultaneously, offering 100 percent efficiency in both directions for a 200 percent potential use of stated bandwidth. Half-duplex communication is unidirectional, or one direction at a time. Gigabit Ethernet and 10 Gb/s NICs require full duplex to operate, and do not support half-duplex operation.

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