Which transport layer protocol is connectionless and unreliable?UDPTCPSCTPIP

Which of the following protocols is not typically associated with the Application layer of the TCP/IP model?  (1 Point)FTPDNSSMTP UDP

Transport layer protocols specify how to transfer messages between hosts, and are responsible for managing reliability requirements of a conversation. The transport layer includes the TCP and UDP protocols.

If UDP, like IP, is unreliable, why do we need this transport layer protocol? Why not just use IP directly?Question 4Select one:UDP adds port numbers, which allow multiple applications to use the UDP layer.IP provides a best-effort service while UDP does notUDP is a connection oriented protocol, IP is notUDP provides sequence numbering of delivered segments

In TCP/IP networking, which transport protocol provides a connection-oriented, reliable data transfer service?Group of answer choicesUDP (User Datagram Protocol)ICMP (Internet Control Message Protocol)HTTP (Hypertext Transfer Protocol)TCP (Transmission Control Protocol)

Which of the following are transport layer protocols?a.TCP and UDPb.ATMc.CISCd.HTTP and FTP