But since there’s little error checking involved, it’s likely for packets to get distorted along the way. It is connectionless so the data packets can be sent without any “negotiation.” In a sense, it’s almost like a “send and forget” protocol, as it provides just enough control information to understand what app is running and to check whether the packets got distorted in transit.

While TCP is more optimized for accuracy, UDP is focused on speed. TCP is so prevalent across the internet that it’s usually combined with Internet Protocol (IP) and written as TCP/IP (TCP over IP). This causes time delays, and user experience can take a hit. However, problems come when the packets get lost or distorted. This accurate delivery of information is the reason TCP is typically used for websites and emails. Sometimes, it takes a few seconds for a packet to be fully transmitted. If the source doesn’t receive an acknowledgment packet or if the packet states that there was a problem during transmission, the packet will be resent. When a packet is sent from one end to the other, the destination acknowledges receipt by sending a packet back to the source. Between the two protocols, TCP is more reliable because it’s designed to cope with network failures and can adapt to available resources in the network.

TCP is a connection-based protocol module that offers some good integrity- and error-checking capabilities, which is why it’s commonly used in most web-based traffic.

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