READ Free Dumps For Cisco- 200-125

Question ID 15981	In an Ethernet network, under what two scenarios can devices transmit? (Choose two.)
Option A	when they receive a special token
Option B	when there is a carrier
Option C	when they detect no other devices are sending
Option D	when the medium is idle
Option E	when the server grants access
Correct Answer	C,D

Explanation Explanation: Ethernet network is a shared environment so all devices have the right to access to the medium. If more than one device transmits simultaneously, the signals collide and cannot reach the destination. If a device detects another device is sending, it will wait for a specified amount of time before attempting to transmit. When there is no traffic detected, a device will transmit its message. While this transmission is occurring, the device continues to listen for traffic or collisions on the LAN. After the message is sent, the device returns to its default listening mode.

Question ID 15982	Refer to the exhibit: What will Router1 do when it receives the data frame shown? (Choose three.)
Option A	Router1 will strip off the source MAC address and replace it with the MAC address 0000.0c36.6965.
Option B	Router1 will strip off the source IP address and replace it with the IP address 192.168.40.1.
Option C	Router1 will strip off the destination MAC address and replace it with the MAC address 0000.0c07.4320.
Option D	Router1 will strip off the destination IP address and replace it with the IP address of 192.168.40.1.
Option E	Router1 will forward the data packet out interface FastEthernet0/1.
Option F	Router1 will forward the data packet out interface FastEthernet0/2.
Correct Answer	A,C,F

Explanation Explanation: Remember, the source and destination MAC changes as each router hop along with the TTL being decremented but the source and destination IP address remain the same from source to destination.

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