Flink aims at providing stream processing with low latency, high throughput and fault-tolerance.

When considering Flink and other Big-Data processing systems, regarding fault-tolerance, identify the true statements.

(select all the correct options).

Question

Flink aims at providing stream processing with low latency, high throughput and fault-tolerance. 
  
 When considering Flink and other Big-Data processing systems, regarding fault-tolerance, identify the true statements. 
  
 (select all the correct options).

Accepted Answer

Flink achieves fault-tolerance by propagating barriers through operator topology.

Accepted Answer

Flink achieves fault-tolerance by maintaining window state in backends.

Answer

Flink achieves fault-tolerance by propagating low watermarks using a conservative approach (always forwards the lowest watermark).

Answer

No response (no penalty if only option answered).

Answer

Flink achieves fault-tolerance by ensuring exactly-once semantics while Spark Streaming cannot.

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