Broadcast details of the hub and switch frames

Broadcast details of the hub and switch frames

@ (computer network)

Read the question directly.

(2016.35) If the host H2 to the host H4 send a data frame, the host H4 to the host H2 immediately send a confirmation frame, in addition to H4, from the physical layer can receive the confirmation frame of the host also: D

A. H2 only
B. H3 only
C. H1,h2 only
D. H2,h3 only

Analysis: Simply examine the process of transmitting data link layer frames. When H2 passes to H4, the MAC address is told to switch so that when the H4 sends back the confirmation frame, it can be uploaded to H2 one by one. But note that H4 will also overhear when the hub sends back a confirmation frame. That is, the hub is the way to broadcast, including the H4 itself will hear, but this is said in addition to H4, then H2,h3 can receive the confirmation frame.