CompTIA Security+ Exam Prep

Answer: B - When determining what would be the best product to purchase while determining what would be the most cost effective with concerns to hardware failure, is the mean time before failure (MTBF). The mean time before failure is how long before hardware will fail and need replacement and the estimated cost of the replacement. It is important to calculate the (MTBF) to determine device value, the risk of equipment failure, and whether to opt for other devices that may offer better value.