Free CompTIA Network+ N10-009 Practice Question

The 'show arp' command is used to display the ARP table of a network device, which contains the mappings of IP addresses to their respective MAC addresses. This can help identify duplicate IP addresses if multiple entries for the same IP address with different MAC addresses are found. Conversely, the other commands listed do not specifically address the mapping of IP addresses to MAC addresses essential for detecting IP conflicts. 'show mac-address-table' displays the MAC address table, which links MAC addresses with their corresponding port numbers but not IP addresses. 'show interface' provides detailed information about the network interfaces, not about IP-to-MAC mappings. 'ping' is used to check the reachability of a host on an IP network and does not display ARP table information.