The figure below shows a small Ethernet LAN. Answer the following questions. (a)
ID: 3864387 • Letter: T
Question
The figure below shows a small Ethernet LAN. Answer the following questions. (a) What kind of network topology is used? (b) Assume stations are connected through a hub. Station A sends a frame to the server while Station B sends a frame to Station D. Is there any frame collision? (c) Assume stations are connected through a switch. Station A sends a frame to the server while Station B sends a frame to Station D. Is there any frame collision? (d) Now assume that stations connected through a switch and all ports are full-duplex. Station A sends a frame to the server while the server sends a frame to Station B. Is there any frame collision? (e) Show one situation where a collision could happen with stations connected through a switch and full-duplex ports.Explanation / Answer
5.a .star topology
explanation: in star topology all nodes connected to central hub.
easy to installation and easy to add node and remove nodes to network.
the main limitation is when hub fail entire network down.
b.collisions occur
when nodes are connected to hub thre is possibility colliions two stations are attempt send message at the same time .they share common medium.
c. no collisions occur
Nodes attached to switch have dedicated media, so there are no collisions. They are operated full duplex mode.
d.no collisions they use full duplex mode one for trasmission one line for receiveing.
ports are full duplex .server connected separately to A and B.
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