TCP and UDP are communication protocols that allows us to send and receive data in a network. We have both for a reason since each has its advantages and disadvantages. In this video we will talk about two protocols, pros and cons of each one and will write tcp and udp server with nodejs showing you these in ACTION. coming up

Code! 

https://github.com/hnasr/javascript_playground/tree/master/tcp

Jump Codes 🏷 

tcp pros cons(4:12)

Tcp demo (19:00)

Udp pros cons (24:25)

Udp demo (31:25)

Summary (35:40)

Explain TCP 

Pros: 

acknolwedgment, 

garenteed delivery, 

connection based

congestion control

ordered packets 

Cons

Larger packets

More bandwidth since more headers. 

Slower (because of retransmission) 

stateful once connection is lost its lost, cannot resume it.  

TCP Example (Code)

telnet 127.0.0.1 8080

Explain UDP

Pros

Statless, 

Less bandwidth 

smaller packets

Faster to transmit 

Cons

no ack, 

no garenteed delivery, 

no congestion control

no ordered packets 

UDP client

echo "foo" | nc -w1 -u 127.0.0.1 41234

2:24 osi model tag 

14:20 stateful. S stateless video