[Jessica Jagerson]

Provide at least three core protocols and their purpose.

[Carlos Martes]

Core protocols are the foundation of digital communication, ensuring devices interact efficiently across networks. Transmission Control Protocol provides reliable data transfer by creating a connection, sequencing packets, and checking for errors, making it vital for services like email, file sharing and web browsing. Internet Protocol manages addressing and routing, ensuring data travels across interconnected networks and reaches to the correct destination services. It acts like a digital postal system, directing packets to their proper location. Hypertext Transfer Protocol governs communication between web browsers and servers, defining how requests are made and responses are delivered so users can access websites and online resources. Together, these protocols work in harmony, ensures reliable delivery, IP directs the path, and HTTP makes web interactions possible. Without them, the internet today would not function as they provide structure, order and accessibility to global and digital communications.

[Isabelle Tubbs]

Hi, Carlos! I agree that TCP’s role in data transfer is important for a variety of services. In my post, I also mentioned HTTP, but I like that you introduced Internet Protocol and how that plays a role with HTTP. The web would not get very far without IP directing the paths involved with HTTP.

[Kanthony]

Hi everyone! I hope Week 1 went well for each of you. Please always email me if you have any questions.

This week, you need to read chapters 3 and 4 and watch the videos. Be sure to complete the week 2 devotional and discussion questions. **You don’t have to upload a word document for the devotions or the discussions.**

Finally, be sure to complete the chapters 3 and 4 exams.

Below is a great devotion from Billy Graham’s Daily Devotions. Have a great week! ~Dr. Anthony

He who hath begun a good work in you will perform it until the day of Jesus Christ.
—Philippians 1:6
Being a Christian is more than just an instantaneous conversion. It is a daily process whereby you grow to be more and more like Christ. When you start out, you start out as a baby. You must be fed on the simple things of the Bible, and you learn to walk in your Christian life gradually. At first you will fall down and make many mistakes, but you are to continue growing. However, there are many people who have stopped growing. They remain spiritual babes all their lives. I am afraid that this experience is all too common today. Perhaps it is yours.

Do you remember the day when you gave your heart and life to Christ? You were sure of victory. How easy it seemed to be more than conqueror through Christ who loved you. Thousands of Christians have struggles with themselves. The great need in Christendom today is for Christians to learn the secret of daily victory over sin.

[Isabelle Tubbs]

One important core protocol is Transmission Control Protocol, or TCP. TCP controls communication in an ordered and precise way by using connections, flow control, and verifications. TCP can establish and verify its connections by using a series of packets and acknowledgements sent between the two parties, such as the three-way handshake. TCP can also maintain good flow control by using a sliding window protocol. This protocol numbers the segments in a specific order so that the recipient receives the right number of segments at a time.

Two additional core protocols that are closely related are HTTP and HTTPS. HTTP, which runs on TCP port 80, is in charge of the process of transferring data between a web browser and a web page. This helps the user to connect with the website they are using. HTTPS is similar to HTTP, but HTTPS is much more secure because of its use of encryption. Additionally, HTTPS runs on TCP port 443.

[Carlos Martes]

Good input Isabelle. TCP ensures reliable data transfer through flow control, verification, and the three way handshake process. It maintains ordered segments using sliding window protocol. HTTP, running on port 80 transfers data between browsers and servers, while HTTPS on port 443 provides secure communication by encrypting traffic, offering greater safety than standard HTTP.

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