An administrator has purchased monitoring software that can be configured to send alerts when hardware and applications are having issues. Which of the following must be installed on the monitoring…

A MIB is a database file that defines the structure and meaning of SNMP Object Identifiers (OIDs) exposed by a specific vendor's hardware. Without the correct vendor MIB loaded on the monitoring server, the server cannot translate raw OID data into human-readable metrics. Vendors supply MIBs so their proprietary counters and status values are understood by standard monitoring platforms.

SMTP is a mail transfer protocol used for sending email alerts, not for receiving or interpreting device monitoring data.

WMI is a Windows-specific management interface and cannot be used to monitor vendor-specific network hardware such as switches or routers.

DHCP is a protocol for dynamic IP address assignment and has no role in device monitoring or metric collection.