Which of the following alerting methods can be configured to send an e-mail when a certain alert is triggered?

The ability to send an email notification when a specific alert is triggered can be achieved through the Simple Mail Transfer Protocol (SMTP). This protocol is specifically designed for sending and receiving email messages across the Internet. When a system monitoring configuration includes sending alerts via email, SMTP is utilized to relay those notifications from the monitoring system to the recipients' email addresses.

In the context of alerting mechanisms, using SMTP allows for direct communication with users via email, making it easier to notify them of critical conditions or incidents. Other protocols listed do not inherently support email notifications:

• SMS (Short Message Service) is focused on sending text messages to mobile devices but does not involve email delivery.

• SNMP (Simple Network Management Protocol) is primarily used for network management and monitoring, allowing the exchange of management information between network devices but does not directly handle email notifications.

• Syslog is a standard for message logging, utilized for message storage and retrieval, but lacks the capability to send emails directly.

Thus, SMTP is the accurate choice for alerting methods configured specifically for sending emails when certain alerts are triggered.