What is the difference between congestion control and flow control? Where are each managed in TCP?

Answer: The differences between the flow control and congestion control are as follows:-

Flow control's traffic is controlled in the direction from sender to receiver whereas traffic control in congestion control be handles from the entrance of the network. Sender is reason for the traffic in flow control while transport layer creates the traffic in congestion control. Transport layer and data link layer are used for managing the traffic whereas congestion control has transport and network layer for handling the traffic.

The TCP for the congestion control works as elimination of the congestion in the sender's field in network layer and transport layer. Flow control is used in TCP to make surety about the non-overwhelming nature of sender towards receiver in the transport layer and data link layer.