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Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）

A、Both devices stop transmitting, wait a random period of time, verify the wire is idle, and re- transmit.

B、The device with the lowest MAC address is permitted to retransmit first.

C、The device with the lowest MAC address sends a jam signal to notify all other devices of the collision.

D、Both devices send a jam signal to notify all other devices of the collision.

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第8题
[多选题] Two devices on an Ethernet segment sent frames at the same time causing a collision.Which two statements are true?（）

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第9题
[多选题] Two devices on an Ethernet segment sent frames at the same time causing a collision. Which two statements are true?（）

A、Both devices stop transmiting, wait a random period of time, verify the wire is idle, and re-transmit  B、The device with the lowest MAC address is permitted to retrannsmit first  C、The device with the lowest MAC address sends a jam signal to notify all other devices of the collision  D、Both devices send a jam signal to notify all other devices of the collision  

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