Through direct wired connections 

Through satellite and microwave relays 

Through the internet only 

Through coaxial cables only 

Allows direct communication between computers within a LAN 

Connects two similar or dissimilar networks and filters traffic 

Expands network coverage in a building 

Shares files between computers 

To link different network segments and manage data flow within an organization 

To connect multiple cities 

To filter traffic within a single network segment 

To provide internet access to LANs 

Interconnects multiple network segments and finds alternative routes 

Expands networks by connecting to the internet 

Provides a connection between routers 

Connects two LANs with different configurations 

Connecting similar or dissimilar types of networks 

Directly storing and processing data on the network 

Only allowing data traffic intended for other networks 

Filtering unwanted traffic from clogging the backbone 

To ensure the accuracy and consistency of the data

To automate the process of data backups and recovery 

To establish rules and regulations for maintaining the database 

To provide a user-friendly interface for accessing the data

To allow computers and devices in close proximity to share resources 

To allow car phones to connect 

To provide internet access 

To connect computers across multiple cities 

Internet

WAN

MAN

LAN

Router

Gateway

Bridge

Modem

Computers in a single building 

Only mobile devices 

Networks within a single office 

Networks across large geographical areas