Question

Which of the following is responsible for reassembling received packets at the recipient computer?
1. IP
2. TCP
3. TCP and IP both
4. Neither TCP and nor IP

Answer 1

Correct Answer - Option 2 : TCP

The correct answer is TCP.

• The Transmission Control Protocol (TCP) guarantees reliable transmission by breaking messages into packets, keeping track of which packets have been received successfully, resending any that have been lost, and specifying the order for reassembling the data on the other end.
• The computers (including servers) at the two endpoints of communication run the Transmission Control Protocol (TCP) that divides up the packets and guarantees reliable transmission.
• TCP is used for organizing data in a way that ensures secure transmission between the server and client.

• TCP performs the following actions:
  • Determines how to break application data into packets that networks can deliver.
  • Sends packets to, and accepts packets from, the network layer.
  • Manages flow control.
  • Handles retransmission of dropped or garbled packets, as it's meant to provide error-free data transmission.
  • Acknowledges all packets that arrive.