Correct Answer: B
Explanation/Reference:
Explanation:
Transmission Control Protocol (TCP) is a connection-oriented transport protocol. Connection-oriented
transport protocols provide reliable transport. When a computer wants to send data to another computer,
TCP will first establish a connection between the two computers. When a sending computer sends data
segments, the receiving computer acknowledges receipt of the segments. If the receiving computer does
not receive an expected segment, the sending computer will send it again.
User Datagram Protocol (UDP) is a connectionless transport protocol. Connectionless transport protocols
provide unreliable transport. With UDP, there is no connection establishment between the sending and
receiving computers. If a data segment is lost in transit, the sending computer will not know about it so it
will not resend the segment.
TCP uses control messages to manage the process of contact and communication. TCP uses a set of
control flags in the TCP header to indicate whether a segment is being used for control purposes or just to
carry data.