Question

A network administrator is troubleshooting an issue where client machines on the subnet $10.0.50.0/24$ cannot establish connections to an internal HTTPS portal hosted at $10.0.50.200$. The administrator runs the `netstat -an` utility directly on the destination server hosting the portal and receives the following output snippet:

Active Connections

Proto Local Address Foreign Address State
TCP 0.0.0.0:80 0.0.0.0:0 LISTENING
TCP 0.0.0.0:443 0.0.0.0:0 LISTENING
TCP 10.0.50.200:443 10.0.50.45:51204 ESTABLISHED
UDP 0.0.0.0:500 *:*

To verify local network layer mapping on a client machine ($10.0.50.45$) that is experiencing intermittent timeouts, which command-line utility should the technician use to inspect the cached IP-to-MAC address bindings?