Final answer:
Logs should be reviewed regularly and systematically to monitor system health, security, and performance, addressing issues proactively and detecting security breaches.
Step-by-step explanation:
Logs should be reviewed regularly and systematically. This practice is essential because it allows for ongoing monitoring of a system's health, security, and performance. By analyzing logs frequently, system administrators can identify and address issues proactively, before they escalate into major problems such as system failures. Furthermore, consistent log reviews can help in detecting security breaches or unauthorized access to systems, as logs contain valuable information about system events, security alerts, and transaction history.
For instance, if a security breach occurs, reviewing logs can help identify the source of the breach and the extent of the damage. System performance issues can also be diagnosed through log analysis, which can reveal patterns or trends that contribute to system slowdowns or crashes. While reviewing logs at the end of a project or only during system failures might provide some insights, these approaches do not leverage the full capabilities of log monitoring to detect and prevent issues in a timely manner. Therefore, the correct answer is c) Regularly and systematically.