Streaming interview questions

12 Streaming questions from the Big Data bank, written for Indian campus drives and tech interviews. Every question has a verified answer and an AI-tutor explanation on placd.

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1. What is batch vs stream?

Junior
  1. A.when an event occurred vs when the system processes it
  2. B.bounding state by dropping event-time data later than a threshold
  3. C.Flink is true record-at-a-time streaming; Spark uses micro-batches
  4. D.batch processes bounded data at rest; streaming processes an unbounded event flow

Answer + AI explanation with Pro

2. Which term means: "batch processes bounded data at rest; streaming processes an unbounded event flow"?

Junior
  1. A.watermarking
  2. B.event time vs processing time
  3. C.batch vs stream
  4. D.Flink vs Spark Streaming

Answer + AI explanation with Pro

3. Which statement is correct?

Junior
  1. A.batch vs stream — when an event occurred vs when the system processes it
  2. B.batch vs stream — bounding state by dropping event-time data later than a threshold
  3. C.batch vs stream — batch processes bounded data at rest; streaming processes an unbounded event flow
  4. D.batch vs stream — Flink is true record-at-a-time streaming; Spark uses micro-batches

Answer + AI explanation with Pro

4. What is watermarking?

Mid
  1. A.batch processes bounded data at rest; streaming processes an unbounded event flow
  2. B.bounding state by dropping event-time data later than a threshold
  3. C.when an event occurred vs when the system processes it
  4. D.Flink is true record-at-a-time streaming; Spark uses micro-batches

Answer + AI explanation with Pro

5. Which term means: "bounding state by dropping event-time data later than a threshold"?

Mid
  1. A.event time vs processing time
  2. B.Flink vs Spark Streaming
  3. C.batch vs stream
  4. D.watermarking

Answer + AI explanation with Pro

6. Which statement is correct?

Mid
  1. A.watermarking — Flink is true record-at-a-time streaming; Spark uses micro-batches
  2. B.watermarking — when an event occurred vs when the system processes it
  3. C.watermarking — batch processes bounded data at rest; streaming processes an unbounded event flow
  4. D.watermarking — bounding state by dropping event-time data later than a threshold

Answer + AI explanation with Pro

7. What is event time vs processing time?

Mid
  1. A.bounding state by dropping event-time data later than a threshold
  2. B.batch processes bounded data at rest; streaming processes an unbounded event flow
  3. C.Flink is true record-at-a-time streaming; Spark uses micro-batches
  4. D.when an event occurred vs when the system processes it

Answer + AI explanation with Pro

8. Which term means: "when an event occurred vs when the system processes it"?

Mid
  1. A.event time vs processing time
  2. B.watermarking
  3. C.Flink vs Spark Streaming
  4. D.batch vs stream

Answer + AI explanation with Pro

9. Which statement is correct?

Mid
  1. A.event time vs processing time — Flink is true record-at-a-time streaming; Spark uses micro-batches
  2. B.event time vs processing time — when an event occurred vs when the system processes it
  3. C.event time vs processing time — bounding state by dropping event-time data later than a threshold
  4. D.event time vs processing time — batch processes bounded data at rest; streaming processes an unbounded event flow

Answer + AI explanation with Pro

10. What is Flink vs Spark Streaming?

Mid
  1. A.bounding state by dropping event-time data later than a threshold
  2. B.Flink is true record-at-a-time streaming; Spark uses micro-batches
  3. C.batch processes bounded data at rest; streaming processes an unbounded event flow
  4. D.when an event occurred vs when the system processes it

Answer + AI explanation with Pro

11. Which term means: "Flink is true record-at-a-time streaming; Spark uses micro-batches"?

Mid
  1. A.event time vs processing time
  2. B.watermarking
  3. C.batch vs stream
  4. D.Flink vs Spark Streaming

Answer + AI explanation with Pro

12. Which statement is correct?

Mid
  1. A.Flink vs Spark Streaming — when an event occurred vs when the system processes it
  2. B.Flink vs Spark Streaming — Flink is true record-at-a-time streaming; Spark uses micro-batches
  3. C.Flink vs Spark Streaming — batch processes bounded data at rest; streaming processes an unbounded event flow
  4. D.Flink vs Spark Streaming — bounding state by dropping event-time data later than a threshold

Answer + AI explanation with Pro

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