Which among the below stated lines represent the handshaking variant usually and only controlled by the software in the handshaking process?

Which among the below stated lines represent the handshaking variant u

1.	Which among the below stated lines represent the handshaking variant usually and only controlled by the software in the handshaking process?
A.	XON/ XOFF
B.	DCD & GND
C.	TxD & RxD
D.	All of the above
Answer» B. DCD & GND

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Which among the below stated lines represent the handshaking variant usually and only controlled by the software in the handshaking process?

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