Which of the following techniques structured streaming uses to ensure recovery of failures during stream processing?
A . Checkpointing and Watermarking
B. Write ahead logging and watermarking
C. Checkpointing and write-ahead logging
D. Delta time travel
E. The stream will failover to available nodes in the cluster
F. Checkpointing and Idempotent sinks
Answer: C
Explanation:
The answer is Checkpointing and write-ahead logging.
Structured Streaming uses checkpointing and write-ahead logs to record the offset range of data being processed during each trigger interval.
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