Microsoft Azure Architect Technologies (AZ-300) Practice Exam

Which option refers to the practice of reducing the chances of failure in applications?

1. Incident response

2. Fault tolerance

3. Resource allocation

4. Regression analysis

The correct answer is: Fault tolerance

The practice of reducing the chances of failure in applications is best captured by the concept of fault tolerance. Fault tolerance refers to the ability of a system to continue operating without interruption when one or more of its components fail. It involves implementing a variety of strategies and techniques such as redundancy, failover mechanisms, and monitoring to ensure that applications can withstand and recover from failures. By incorporating fault tolerance, applications can minimize downtime, enhance reliability, and ensure continuous availability, which is critical in cloud environments where uptime is essential for user satisfaction and operational continuity. In contrast, incident response focuses on how organizations manage and mitigate the impact of an incident once it has occurred, rather than proactively preventing failures. Resource allocation pertains to the distribution of resources, such as processing power and memory, within a system, which does not inherently address failure prevention. Regression analysis involves statistical methods to understand relationships between variables but does not relate directly to application reliability or failure prevention.