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Quiz Confluent Marvelous Certification CCDAK Torrent

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Confluent CCDAK (Confluent Certified Developer for Apache Kafka) certification exam is designed for professionals who want to demonstrate their expertise in Apache Kafka. Confluent Certified Developer for Apache Kafka Certification Examination certification is globally recognized and validates one's ability to develop applications that can effectively utilize Kafka's capabilities.

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Confluent Certified Developer for Apache Kafka Certification Examination Sample Questions (Q30-Q35):

NEW QUESTION # 30
You have a consumer group of 12 consumers and when a consumer gets killed by the process management system, rather abruptly, it does not trigger a graceful shutdown of your consumer. Therefore, it takes up to 10 seconds for a rebalance to happen. The business would like to have a 3 seconds rebalance time. What should you do? (select two)

A. Increase heartbeat.interval.ms
B. increase max.poll.interval.ms
C. decrease max.poll.interval.ms
D. Decrease session.timeout.ms
E. Decrease heartbeat.interval.ms
F. Increase session.timeout.ms

Answer: B,D

Explanation:
session.timeout.ms must be decreased to 3 seconds to allow for a faster rebalance, and the heartbeat thread must be quicker, so we also need to decrease heartbeat.interval.ms

NEW QUESTION # 31
A kafka topic has a replication factor of 3 and min.insync.replicas setting of 2. How many brokers can go down before a producer with acks=1 can't produce?

A. 0
B. 1
C. 2
D. 3

Answer: A

Explanation:
min.insync.replicas does not impact producers when acks=1 (only when acks=all)

NEW QUESTION # 32
What is the risk of increasing max.in.flight.requests.per.connection while also enabling retries in a producer?

A. Reduce throughput
B. Message order not preserved
C. Less resilient
D. At least once delivery is not guaranteed

Answer: B

Explanation:
Some messages may require multiple retries. If there are more than 1 requests in flight, it may result in messages received out of order. Note an exception to this rule is if you enable the producer settingenable.
idempotence=true which takes care of the out of ordering case on its own. Seehttps://issues.apache.org/jira
/browse/KAFKA-5494

NEW QUESTION # 33
A consumer is configured with enable.auto.commit=false. What happens when close() is called on the consumer object?

A. The group coordinator will discover that the consumer stopped sending heartbeats. It will cause rebalance after session.timeout.ms
B. The uncommitted offsets are committed
C. A rebalance in the consumer group will happen immediately

Answer: C

Explanation:
Calling close() on consumer immediately triggers a partition rebalance as the consumer will not be available anymore.

NEW QUESTION # 34
Which of the following Kafka Streams operators are stateless? (select all that apply)

A. aggregate
B. groupBy
C. branch
D. map
E. filter
F. flatmap

Answer: B,C,D,E,F

Explanation:
Seehttps://kafka.apache.org/20/documentation/streams/developer-guide/dsl-api.html#stateless-transformations

NEW QUESTION # 35
......

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