System reliability refers to the probability that a system will perform its intended function without failure over a specified period under stated conditions. It is a critical factor in ensuring the dependability and efficiency of systems across various industries, impacting both performance and safety.
System monitoring is the continuous oversight of computer systems to ensure optimal performance, availability, and security. It involves collecting, analyzing, and responding to system data to detect and resolve issues proactively, thereby minimizing downtime and maintaining service quality.