What Transport layer communication function breaks Application layer data into pieces of the size needed to fit into the Data fields of Data-Link layer frames? flow control session management segmenting subnetting At the Transport layer, session management involves establishing and terminating host-to-host connections. What control characters are exchanged when communication sessions are created and terminated? NAK; ACK SYN:ACK; FIN RTS; CTS RSVP: RTP is an important aspect of connection-oriented messaging between hosts at the Transport layer. A) The three-way handshake B) Continuous ARQ C) A four-way handshake D) All the above is an Application layer protocol that typically uses user datagram protocol (UDP) instead of TCP because transmission speed is more important that reliability. A) DNS B) HTTP C) SMTP D) DHCP E) Two of the above, A and D The most widely used Network layer protocol on the public Internet is A) IPSec B) DNS C) IP D) ICMP E) DHCP