Your network has 20 computers connected to a hub You want to

Your network has 20 computers connected to a hub. You want to increase performance by reducing the size of the collision domain as much as possible. Which of the following devices can be used to do this?

A. A hub

B. A bridge

C. A switch

D. None of the above

Solution

A is correct. Cut-through switches begin delivering the frame as soon as a destination address is discovered.

B, C, and D are incorrect. B is incorrect because store-and-forward switches receive the entire frame before forwarding, injecting additional latency but examining it for errors. C is incorrect because fragment free reads the first 64 bytes of the frame before delivering it, thus reducing collision errors and bad frame propagation. B is incorrect because full duplex does not apply in this scenario.