Wednesday, July 16, 2008

Test CCNA 15

15. Refer to the exhibit. Switch1 has just been restarted and has passed the POST routine. Host A sends its initial frame to Host C. What is the first thing the switch will do as regards populating the swtching table?


A. Switch1 will add 192.168.23.4 to the switching table.
B. Switch1 will add 192.168.23.12 to the switching table.
C. Switch1 will add 000A.8A47.E612 to the switching table.
D. Switch1 will add 000B.DB95.2EE9 to the switching table.
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Correct C
Explaination:
That Switch1 has just been restarted and has passed the POST routine indicates that MAC address table of switch 1 is empty. When Host A sends its initial frame to Host C, Switch1 records the MAC address of Host A and the map ping port number in its MAC address table. Note that a switch records the source MAC address rather than the destination MAC address.

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