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In a big data processing environment, you are tasked with ensuring the reliability and fault tolerance of a data pipeline. Which of the following strategies would you employ to achieve this goal?
A
Implement data replication across multiple storage systems to ensure data availability.
B
Use a checkpointing mechanism to save the state of the pipeline at regular intervals.
C
Design the pipeline with idempotent operations to handle retries without side effects.
D
All of the above.
