title: What does full duplex connection actually mean?
body: <p>I am trying to understand why <code>webocket</code> protocol is faster than <code>http</code>. Some of the points that I came across were that 1) because the over head of headers is handshake is reduces by ensuring minimu headers 2) websockets maintain a full duplex connection with the server (meaning they can send and receive data simultaneously)<br>
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  I don't quite get the second point. I only get jargons on internet. Can someone explain what does having a true duplex connection mean?</p>