QUESTION 13
What are two advantages of Layer 2 Ethernet switches over hubs? (Choose two.)
A. decreasing the number of collision domains
B. filtering frames based on MAC addresses
C. allowing simultaneous frame transmissions
D. increasing the size of broadcast domains
E. increasing the maximum length of UTP cabling between devices
Answer: BC
Explanation:
Hubs are layer 1 devices which flood out Traffic recieved on 1 port to all the ports on the Hub.Switches are uses ASIC
hardware usine which they learn the Source
Mac-address of a frame and bulid MAC-Address Table using which frames are forwarded to destinations based on Mac-Addresses.So
by this there are no collision
domains. Since there are different collision domains for each port simultanious frame transmissions can occur.
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