Which methods are commonly used by sysadmins to organize issues? a. Random machine checks
b. Daily checks on each machine
c. Service monitoring alerts

c. Service monitoring alerts

Explanation:

Given the fact that system administrators manage so many computer systems,  they are equipped with service monitoring alerts that indicate when there is a problem with any of the systems and the extent or magnanimity of the problem. This is necessary so as to attract responses from the right personnel.

Metrics are deployed to gather raw data on the system's use and behavior. Monitoring compiles these data to useful information that can be stored when they meet up to some standards. The alert system sends out signals to the administrators when some acceptable standards are not met. So, the service, monitoring alerts are used by system admins to organize issues.