What command can be used on most modern PC operating systems to display the contents of the ARP cache from the CLI?
A) netstat -a
B) ifconfig
C) arpname
D) arp -a
D
Explanation: D) The arp -a command can be used on most modern PC operating systems to display the contents of the ARP cache (table). The arp command can also be used to manually add and delete entries from the ARP cache (table).
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