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Which Well-Architected pillar most directly addresses a workload's ability to recover from failures and meet recovery time objectives (RTOs)?

ASecurity
BOperational Excellence
CReliability
DPerformance Efficiency
Answer & Solution
Correct answer: C. Reliability
Reliability covers a workload's ability to perform its intended function correctly and consistently, including the ability to recover from disruptions. Operational Excellence covers process improvement, Security covers protection, and Performance Efficiency covers resource utilization.
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