Failover is a specific type of fault tolerance that occurs when a redundant storage server offers an exact replica of the real-time data, and if the primary server crashes, the users are automatically directed to the secondary server or backup server. This is a high-speed and high-cost method of backup and recovery.

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Quizplus · Accepted Answer

Failover is indeed a fault tolerance technique where a secondary system takes over automatically when the primary system fails, ensuring continuous operation. This process often involves real-time data replication and can be high-speed and costly due to the infrastructure required to maintain an exact, up-to-date copy of the data and the mechanisms needed for seamless switching between servers.

Failover Is a Specific Type of Fault Tolerance That Occurs