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Communication in UART is ___________

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Communication in UART is ___________

(a) Only simple

(b) Only duplex

(c) Only full duplex

(d) Simplex, half duplex, full duplex

I have been asked this question in an interview for internship.

The query is from UART Protocol in portion Internet Principles of IOT

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Right answer is (d) Simplex, half duplex, full duplex

To elaborate: Communication may be simplex(in one direction only no provision for the receiving device to send data back to the transmission device), full duplex(both devices send and receive data at the same time), half duplex(devices takes turns transmitting and receiving).

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