Cisco
200-150 · Question #89
200-150 Question #89: Real Exam Question with Answer & Explanation
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Question
What action does a switch take if the destination MAC address is unknown?
Options
- ADiscard frame
- BSend ICMP unreachable message to source
- CFlood packet on all ports
- DCompare destination IP address against an ACL to determine if it is permitted
- ESend gratuitous ARP on all ports and wait for reply before forwarding
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