Confluent
CCDAK · Question #54
CCDAK Question #54: Real Exam Question with Answer & Explanation
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Question
What kind of delivery guarantee this consumer offers? while (true) { ConsumerRecords<String, String> records = consumer.poll(100); try { consumer.commitSync(); } catch (CommitFailedException e) { log.error("commit failed", e) } for (ConsumerRecord<String, String> record records) { System.out.printf("topic = %s, partition = %s, offset = %d, customer = %s, country = %s ", record.topic(), record.partition(), record.offset(), record.key(), record.value()); } }
Options
- AExactly-once
- BAt-least-once
- CAt-most-once
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