Computer Networks - Physical and Data Link Layer
Given a switch with MAC address table entries for devices A and B on ports 1 and 2 respectively, what happens when device C sends data to device A?
Given a switch with MAC address table entries for devices A and B on ports 1 and 2 respectively, what happens when device C sends data to device A?
medium📝 Analysis Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand MAC address table use
The switch uses the MAC table to forward data only to the port of the destination device.Step 2: Apply to device C sending to device A
Since device A is on port 1, data is forwarded only to port 1, not broadcasted.Final Answer:
Switch forwards data only to port 1 where device A is connected. -> Option BQuick Check:
Switch forwards based on MAC table = Switch forwards data only to port 1 where device A is connected. [OK]
Quick Trick: Switch uses MAC table to send data only to destination port [OK]
Common Mistakes:
MISTAKES- Assuming switch broadcasts to all ports
- Thinking switch drops unknown source devices
- Confusing destination port with other ports
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