Introduction to Data-link Layer

The data-link layer and physical layer are territories of networks that when connected make up the _________

• networking

• internetting

• Internet

• connection

The data link layer needs to transmit to the next node in the network

• packets

• frames

• data

• bits

The Internet is a combination of networks glued together by __________

• transmission media.

• hubs and repeaters .

• routers .

• connecting devices .

Communication at the data-link layer is ___________

• end-to-end

• node-to-node

• host-to-host

• process-to-process

A data unit from one point in the Internet needs to pass through many ___________ to reach another point

• internetworks

• LANs

• WANs

• networks

LANs and WANs are connected by _________

• switches

• routers

• hubs

• gateways

It is customary to refer to the two end hosts and the routers as _________

• source and destination

• terminals

• links

• nodes

•These LANs and WANs are connected by routers. The networks in between are referred to as _________

• hosts

• terminals

• links

• nodes

The data-link layer provides services to the _________ layer

• physical

• transport

• network

• application

The data-link layer receives services from the _________ layer.

• physical

• application

• network

• transport