A computer network protocol defines the format and the order of messages exchanged between two or more communicating entities, as well as the actions taken on the transmission and$/$or receipt of a message or other event.

True

False

Question $8$

$0\mathrm{.}1$ pts

The transmission delay of a link can be computed by the length of the physical medium of the link divided by the speed of the light of that medium.

True

False

Question $9$

$0\mathrm{.}1pts$

The Internet service is modeled in layers. Hence, when a message is sent by an application running on a computer connected to the Internet, this message must be processed by each layer and encapsulated at each layer, typically with a header describing essential information