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Which of the following controls is MOST effective at preventing system failures when implementing a new web application?
Correct Answer: B
Comprehensive and Detailed Step-by-Step Explanation: Thoroughsystem testingbefore deployment helps identify potentialbugs, vulnerabilities, and performance issuesto prevent system failures. * System Testing (Correct Answer - B) * Detects defects that could lead to system crashes. * Ensures compatibility and performance stability. * Example:Stress testing an e-commerce application to prevent crashes on Black Friday. * System Recovery Plan (Incorrect - A) * Focuses on recovery after failure rather than prevention. * Business Continuity Plan (Incorrect - C) * Addresses overall business resilience, not application stability. * Transaction Monitoring (Incorrect - D) * Detects fraud and anomalies but does not prevent failures. References: * ISACA CISA Review Manual * NIST 800-160 (Systems Security Engineering)