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The Difference between TCP and UDP – Explained

If you’re new to networking, you may be wondering what the difference is between TCP and UDP. Both TCP and UDP are protocols that are used for communication between devices on a network. However, there are some key differences between the two. In this blog post, we’ll explain the difference between TCP and UDP so that you can better understand how each one works.

TCP and UDP are both protocols that govern how data is transmitted over a network

TCP and UDP are two of the fundamental protocols that allow data to be sent and shared over a network. TCP is a connection-oriented protocol that prioritizes reliability, meaning data is delivered in the same order it was sent. UDP on the other hand provides fast, easy transmission without the need for established connections or error checking – making it advantageous for applications like streaming. Though distinct, both of these protocols are essential when it comes to enabling effective communication through networks. To get a better understanding of the full scope of network communication, it’s important to familiarize oneself with both TCP and UDP and how they come into play.

TCP is a connection-oriented protocol, which means that it establishes a connection between two devices before any data can be sent

TCP is an incredibly important protocol when it comes to computers in a network, as it ensures that all data sent is reliable. It does this by first establishing a connection between two devices, which eliminates any possibility of garbled or incomplete data being sent from one to the other. This makes TCP an invaluable tool when transmitting large amounts of accurate information from one computer to another, such as medical scan results or detailed financial reports. The fact that many modern day applications and programs use this protocol shows just how vast its reach truly is.

UDP is a connectionless protocol, which means that data can be sent without first establishing a connection

UDP or User Datagram Protocol is a key tool in the internet arsenal. It allows data to be sent without first forming an explicit connection between two reliable sources as it operates on a “connectionless” basis. As such, UDP is well suited for applications where speed and efficiency are of critical importance, such as video-streaming and Voice over Internet Protocol (VoIP). The flexibility that has make UDP popular among developers means users don’t need to bother the sender with confirmations that the packets have been received, instead they are left to assume successful transmission. It’s definitely a great asset to have when working with a dependable network environment but care must be taken that any errors resulting from packet loss or arriving out-of-order can be handled properly with appropriate steps.

TCP is typically used for applications that require reliable delivery of data, such as email or file transfer; UDP is often used for real-time applications such as streaming audio or video

The two fundamental types of data delivery protocols – TCP and UDP – are used in order to optimally suit the needs of a given application. TCP is usually used for applications that require guaranteed delivery, such as email and file transfer, since this protocol ensures every packet sent is received by its intended recipient. Meanwhile, due to its faster transmission speeds, UDP is preferred when real-time communication is essential such as for streaming audio or video. Additionally, due to its lack of overhead processes that come along with reliable delivery — making it more efficient than TCP — UDP can also be useful for gaming applications where low latency is a necessity.


In the end, it’s important to choose the right protocol for your needs. TCP is a more reliable protocol that is suited for applications that require reliable delivery of data, while UDP is a faster and more efficient protocol that is ideal for real-time applications.

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