Which IOS troubleshooting tool should you use to direct system messages to your screen?

`log events` is not a standard Cisco IOS command used for directing system messages to the screen; logging configurations typically involve `logging console` or `logging monitor`, but `terminal monitor` is the command to view them in a remote session.

The `terminal monitor` command, executed in privileged EXEC mode, redirects console log messages, debug output, and other system messages to the current Telnet or SSH session. This is critical for real-time troubleshooting when connected remotely, as these messages are otherwise only displayed on the physical console port by default.

Local SPAN (Switched Port Analyzer) is a feature used to mirror network traffic from one port or VLAN to another port for external analysis, not for displaying router system messages on the screen.

APIC-EM (Application Policy Infrastructure Controller Enterprise Module) is a Cisco SDN controller and network management platform, not a command-line troubleshooting tool within IOS for viewing system messages directly.