Howard Hudson - Week 6 - TCP/IP applications

This week we are looking at communication between computers and applications via the internet. Some of the popular protocols are Transmission Control Protocol (TCP), User Datagram Protocol (UDP),
Network Address Translation (NAT), Internet Protocol (IP), and Internet Control Message Protocol (ICMP). The most common protocol is the connection-oriented type, which includes TCP. In a nutshell, a connection is created, data is sent, and the connection is terminated. 

When I open my browser and press enter to go to a website, my computer (the client), sends a synchronize packet to the server. The server acknowledges the synchronize and sends a synchronize packet back to my computer. In response, my computer replies back with an acknowledgment. That sequence is called the three-way handshake. 

After the session is no longer needed (the data transfer is complete), a four-way communication is made.  The server sends a final packet. My computer responds with an acknowledgement and a final packet. Last, the server sends an acknowledgement packet to end the session.

Meyers, Mike. (2018). CompTIA Network+ Certification All-in-One Exam Guide, Seventh Edition 


https://study-ccna.com/tcp-three-way-handshake/







Resources



Kozierok, C. M. (2005, September 20). Network Layer (Layer 3). Retrieved January 15, 2019, from http://www.tcpipguide.com/free/t_NetworkLayerLayer3.htm

Linktionary. (n.d.). Connection-Oriented and Connectionless Services. Retrieved January 15, 2019, from https://www.linktionary.com/c/connections.html

Meyers, Mike. (2018). CompTIA Network+ Certification All-in-One Exam Guide, Seventh Edition (Exam N10-007), 7th Edition (2nd ed., pp. 19-27, 163-167). McGraw-Hill Education, 20180622. VitalBook file. Retrieved December 10, 2018. from https://www.bkstr.com/ProductDisplay?urlRequestType=Base&catalogId=10001&categoryId=9604&productId=78144026&errorViewName=ProductDisplayErrorView&langId=-1&top_category=&parent_category_rn=&storeId=10361

Oracle Corporation. (n.d.). System Administration Guide, Volume 3. Retrieved January 15, 2019, from https://docs.oracle.com/cd/E19455-01/806-0916/ipov-10/index.html

Oracle Corporation. (2010). Connection-Oriented and Connectionless Protocols. Retrieved January 15, 2019, from https://docs.oracle.com/cd/E19620-01/805-4041/6j3r8iu2f/index.html

Study-ccna. (n.d.). TCP three-way handshake. Retrieved January 15, 2019, from http://www.tcpipguide.com/free/t_NetworkLayerLayer3.htm

Wikipedia. (2019, January 14). List of network protocols (OSI model). Retrieved January 15, 2019, from https://en.wikipedia.org/wiki/List_of_network_protocols_(OSI_model)







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