Which of the following devices extends the network and has the capacity to store frames and act as
a storage and forward device?

A.
Router

B.
Bridge

C.
Repeater

D.
Gateway

Explanation:
A bridge connects two separate networks to form a logical network (e.g., joining an ethernet andd
token network) and has the storage capacity to store frames and act as a storage and forward
device. Bridges operate at the OSI data link layer by examining the media access control header of a
data packet.
Incorrect answers:
A)
Routers are switching devices that operate at the OSI network layer by examining network
addresses (i.e., routing information encoded in an IP packet). The router, by examining the IP
address, can make intelligent decisions in directing the packet to its destination.
C)
Repeaters amplify transmission signals to reach remote devices by taking a signal from a LAN,
reconditioning and retiming it, and sending it to another. This functionality is hardware encoded and
occurs at the OSI physical layer.
D)
Gateways provide access paths to foreign networks.