The Internet's ________ transports application-layer messages between application and end-points.

The ________ is where network applications and their application-layer protocols reside.

To move a packet from one node ( host or router ) to the next node in the route, it relies on the services of the _______.

The Internet's _________ is responsible for moving datagrams from one host to another.

The job of the _________ is to move the individual bits within the frame from one node to the next.

A. transport layer

B. application layer

C. link layer

D. network layer

E. physical layer