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Eighth Video in a Series covering all elements of Cisco Certified Network Associate (200-301 CCNA) In this video we look at TCP the Transmissions Control Protocol and UDP the User Datagram Protocol. We start with an overview of UDP, finding out its an unreliable connectionless protocols but has the benefit of speed with its low overhead. UDP does not check if the destination exist or if it is capable of accepting the traffic, instead of just sends it and hopes it is received by the remote host Protocols which use UDP are: DNS - Port 53 TFTP - Port 69 RIP - Port 520 DHCP - Ports 67/68 We then dived into TCP and went over the benefits TCP offers being a connection-orientated protocol with the introduction of the 3-way handshake which allows TCP to put sequencing against all segments/bytes sent/received and from this sequencing method it is able to identify how much traffic was successfully sent and acknowledged. TCP will also ramp up the speed of which segments are sent/received until some acknowledgments are missing, once segments are not acknowledge this allows the sending device to scale down the speed of which segments are sent and in turn control the flow of traffic. All of this is possible (and much more) with it being a connection-orientated protocol. Protocols which use TCP are: HTTP - Port 80 HTTPS - Port 443 FTP - Ports 20-21 POP3 - Port 110 SMTP - Port 25 Then finished the video with an overview of the protocols side by side. It is important you remember and understand the differences between TCP and UDP along which which applications use which Layer 4 protocol and why that might be, along with which port number(s) they use. If you find this video to be helpful, please do leave a Like or better still, subscribe. This allows me to establish how helpful these videos are and if I should continue with this video series The course itself will cover everything required to pass your CCNA 200-301 exam Full course: 📚Books! 🎓🎓 CCNA 200-301 Official Cert Guide - My fav books: Routing TCP/IP Volume I (CCIE Professional Development): Authorized CCIE Preparation: v. 1 - Routing TCP/IP (CCIE Professional Development): Volume 2 - Learn all about TCP: - Another great TCP book - 📚Books 🎓🎓 Cisco CCNA Course Cisco CCNA 200-301 CCNA 200-301 Training CCNA 200-301 Full Course CCNA 200-301 Study CCNA 200-301 Tutorials CCNA 200-301 Full Course 👍👍 Thanks for Watching 👍👍 Want to give back? ☕ Buy me a Coffee - You can find me on: ✉✉ Twitter - @RyanBeney - Linkedin - /RyanBeney - Facebook - /RyanBeneyNetworking - #FreeCCNA #CCNA #Ryanbeney #FreeCCNA #CCNA 200-301
