FLINK uses the checkpoint mechanism to ensure the fault tolerance of the application program.

Question

Options

• ATrue
• BFalse

• A
  79% (19)
• B
  21% (5)

Explanation

A (True) is correct because Apache Flink relies on its checkpoint mechanism as the core strategy for fault tolerance - periodically taking consistent snapshots of operator state and stream positions so that, upon failure, the application can be restarted from the last successful checkpoint rather than from scratch.

B (False) is wrong because there is no alternative fault-tolerance mechanism being overlooked here; Flink's checkpoint system is definitively and by design the answer to fault tolerance in stateful streaming applications.

Memory tip: Think of checkpoints as Flink's "save game" feature - just as a video game saves your progress so you don't start over after a crash, Flink's checkpoints save distributed state so a job failure doesn't mean replaying all data from the beginning.

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