In asynchronous serial communication, what is the role of "Hardware Handshaking" (e.g., using RTS/CTS lines)?
To prevent data loss by managing buffer overflow
In asynchronous serial communication the receiving device has only a limited buffer, so if the sender transmits faster than the receiver can process, that buffer can overflow and data can be lost.
Hardware handshaking using the RTS (Request To Send) and CTS (Clear To Send) control lines provides flow control, so its role is to prevent data loss by managing buffer overflow.
When the receiver's buffer is nearly full, it de-asserts the CTS line, signalling the sender to pause; once space is available again the line is re-asserted and transmission resumes.
This is a physical-signal (hardware) form of flow control, distinct from software flow control that uses special characters in the data stream.
It does not synchronise the two devices' internal clocks — asynchronous communication instead relies on start and stop bits framing each character for timing.
It does not encrypt the data, because the RTS/CTS lines carry only control signalling, not the payload.
Error detection using parity bits is a separate mechanism entirely, so that option is not the role of handshaking.
Hence the correct answer is To prevent data loss by managing buffer overflow.
Similar Questions
While ______ data transfers from the customers’ machine to the server.
__________is a passage to connect two networks that may work on different networking models.
Α _________ is a networking device that filters network traffic while connecting multiple computers or communicating devices.
Which one of the following folders is used to store deleted emails?
Which among the following ports is also called as mouse port?
In the OSI model, which layer is responsible for routing packets across different networks using logical addressing?
Which of the following Internet protocol specifies how data is exchanged over the Internet and how it should be broken into IP packets?
In Gmail, what do you use when you receive a mail and want to send the mail in response of the same mail and to the original sender only?
- _______ are rules that exist at several levels in a telecommunication connection.
Important Questions from Networking
Which of the following statement(s) is/are correct regarding m-commerce?
I. Mobile security is one of the prominent impediments of m-commerce.
II. M-commerce reduces overall transaction cost through streamlined business processes.
III. Mobile coupons and mobile ticket delivery are m-commerce services.
FTP stands for
Which of the following malicious program do not replicate automatically?
Which of the following is a connecting device?
Which of the following is not a Search Engine?
