Expands network coverage in a building 

Allows direct communication between computers within a LAN 

Shares files between computers 

Connects two similar or dissimilar networks and filters traffic 

Computers in a single building 

Networks across large geographical areas 

Only mobile devices 

Networks within a single office 

By allowing users to easily customize the database structure 

By providing common functionality needed by many applications 

By automating the process of software updates and patches 

By centralizing all data access through a single interface 

LAN

WAN

Internet

MAN

To provide a user-friendly interface for accessing the data

To automate the process of data backups and recovery 

To ensure the accuracy and consistency of the data

To establish rules and regulations for maintaining the database 

Neither A nor B 

To define access permissions for users 

Both A and B 

To enforce data integrity constraints 

Bridge

Router

Gateway

Modem

All of the above 

To allow users to define, store, and update information on demand 

To ensure the safety of stored information from crashes and unauthorized access 

To provide a way to store and retrieve data efficiently 

To define authorization checks for sensitive data 

All of the above 

To ensure the overall integrity and consistency of the database 

To determine which tables should be handled when modifying data 

To provide internet access 

To allow car phones to connect 

To connect computers across multiple cities 

To allow computers and devices in close proximity to share resources