Which factor can negatively impact the performance of an alarm system?

Poor connections can significantly hinder the performance of an alarm system. When connections are insecure or improperly made, it can lead to incomplete circuits, resulting in unreliable operation of the system. This might cause false alarms or prevent the system from responding when needed, compromising the security it is meant to provide.

In contrast, proper grounding, correct voltage, and regular maintenance are all actions that enhance the reliability and function of an alarm system. Proper grounding helps stabilize the system and protect it from electrical surges, correct voltage ensures the system operates within its designed parameters, and regular maintenance helps identify and resolve issues before they affect system performance. Together, these factors contribute positively, while poor connections detract from an alarm system's reliability.