You have 100Mbps and 1000Mbps hosts throughout your network

You have 100-Mbps and 1000-Mbps hosts throughout your network. A new trainee asks you which switching method is used on your switches. Which is the correct response?

A. Cut through

B. Store and forward

C. Fragment free

D. Full duplex

Solution

B is correct. Store-and-forward switches receive the entire frame before forwarding, injecting additional latency but examining it for errors. This allows devices of different speeds/duplex settings to communicate over the same switch.

A, C, and D are incorrect. A is incorrect because cut-through switches begin delivering the frame as soon as a destination address is discovered. 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. D is incorrect because full duplex does not apply in this scenario.