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The command to display CDP (Cisco Discovery Protocol) neighbors in detail is "show cdp neighbor detail." This command provides comprehensive information about each neighbor device, including details such as the device ID, local interface, hold time, capability, and software version. It goes beyond just listing neighboring devices by giving insights into their configuration and status, which is particularly useful for network administrators when troubleshooting or managing network topology.

Other commands like "show cdp neighbors" will only provide a brief summary of the neighbors, listing their device IDs and local interfaces without additional detail. Similarly, "display cdp neighbors" and "show full cdp neighbors" are not standard commands in Cisco IOS, and therefore would not yield the desired detailed output about CDP neighbors. This distinction is vital for anyone seeking to use CDP effectively to manage and monitor their network environment.