Which of the following is NOT a feature of TCP?

TCP, or Transmission Control Protocol, is well-known for several key features that contribute to its functionality in managing data transmission over networks. One of the primary characteristics of TCP is that it is connection-oriented, meaning it establishes a dedicated connection between the sender and receiver before any data is transmitted. This ensures that data can be delivered in a reliable manner, with both parties aware of the connection's state.

Another significant feature is flow control, which helps manage the rate of data transmission between the sender and receiver. This ensures that a fast sender does not overwhelm a slower receiver, preventing data loss and ensuring smooth communication.

Reliable delivery is also central to TCP's operation. It guarantees that all packets of data sent are received accurately by the destination, using techniques such as acknowledgments and retransmissions for any lost packets, thus maintaining data integrity during transmission.

In contrast, packet switching is a method of data transmission that involves breaking down data into smaller packets which may be routed through different paths to the destination. Packet switching is more closely associated with the overall architecture of the Internet and is not a feature specific to TCP itself. TCP works with the concept of packet switching but does not implement this feature directly.

Therefore, the identification of packet switching as the feature that does not apply