多选题You examine the port statistics on a Cisco Catalyst switch and notice an excessive number offrames are being dropped. Which of the following are possible reasons for the drops？（）AUnknown destination MAC addressBBad cablingCMAC forwarding table is fullDPort configured for half duplexEPort configured for full duplexFNetwork congestion
多选题
You examine the port statistics on a Cisco Catalyst switch and notice an excessive number offrames are being dropped. Which of the following are possible reasons for the drops？（）
A
Unknown destination MAC address
B
Bad cabling
C
MAC forwarding table is full
D
Port configured for half duplex
E
Port configured for full duplex
F
Network congestion
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