CORRECT TEXT
Fill in the blank with the appropriate term. A______________________ network is a local area
network (LAN) in which all computers are connected in a ring or star topology and a bit- or tokenpassing scheme is used for preventing the collision of data between two computers that want to
send messages at the same time.

Answer: Token Ring

Explanation:

A Token Ring network is a local area network (LAN) in which all computers are connected in a ring
or star topology and a bit- or token-passing scheme is used in order to prevent the collision of data
between two computers that want to send messages at the same time. The Token Ring protocol is
the second most widely-used protocol on local area networks after Ethernet. The IBM Token Ring
protocol led to a standard version, specified as IEEE 802.5. Both protocols are used and are very
similar. The IEEE 802.5 Token Ring technology provides for data transfer rates of either 4 or 16
megabits per second.
Working:
Empty information frames are constantly circulated on the ring. When a computer has a message
to send, it adds a token to an empty frame and adds a message and a destination identifier to the
frame. The frame is then observed by each successive workstation. If the workstation sees that it
is the destination for the message, it copies the message from the frame and modifies the token
back to 0.When the frame gets back to the originator, it sees that the token has been modified to 0

and that the message has been copied and received. It removes the message from the particular
frame.The frame continues to circulate as an empty frame, ready to be taken by a workstation
when it has a message to send.