An Ethernet bridge is configured such that all interfaces are in a single broadcast domain. Which two tasks does an Ethernet bridge perform in response to receiving a frame with an unknown unicast destination MAC address? (Choose two.)

A. It drops the frame.

B. It floods the frame out of all interfaces except the one on which is was received.

C. It learns the destination MAC address when it sees return traffic from the device.

D. It learns the source MAC address when it sees return traffic from that device.








 

Suggested Answer: BC



When a bridge receives a data frame with an unknown destination MAC address, the frame is flooded out all other ports in the same broadcast domain. Once the bridge sees return traffic from this MAC address, it adds the address to the bridge table.

This question is in JN0-360 Juniper Networks Certified Specialist (JNCIS-SP) Exam
For getting Juniper Networks Certified Specialist - Service Provider Routing and Switching (JNCIS-SP) Certificate







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