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Question 11

How can you delete a topic named "test" using the Kafka CLI?

  • A. kafka-topics.sh --delete --topic test --zookeeper localhost:2181
  • B. kafka-topics.sh --delete --topic test --bootstrap-server localhost:9092
  • C. kafka-configs.sh --delete --entity-type topics --entity-name test --bootstrap-server localhost:9092
  • D. kafka-console-producer.sh --delete --topic test --bootstrap-server localhost:9092

Answer: B

Explanation: To delete a topic using the Kafka CLI, you should use the kafka-topics.sh command with the --delete option. The --bootstrap-server option specifies the Kafka broker(s) to connect to.

Question 12

What command can you use to reset offsets for a consumer group in Kafka?

  • A. kafka-consumer-groups.sh --reset-offsets
  • B. kafka-topics.sh --reset-offsets
  • C. kafka-console-consumer.sh --reset-offsets
  • D. kafka-configs.sh --reset-offsets

Answer: A

Explanation: To reset offsets for a consumer group, you should use the kafka-consumer-groups.sh command with the --reset-offsets option.

Question 13

How can you check the consumer group lag for a specific consumer group using the Kafka CLI?

  • A. kafka-consumer-groups.sh --describe --group --bootstrap-server localhost:9092
  • B. kafka-topics.sh --describe --group --bootstrap-server localhost:9092
  • C. kafka-configs.sh --describe --group --bootstrap-server localhost:9092
  • D. kafka-console-consumer.sh --describe --group --bootstrap-server localhost:9092

Answer: A

Explanation: To check the consumer group lag, you should use the kafka-consumer-groups.sh command with the --describe option and specify the --group option along with the consumer group ID.

Question 14

Which command is used to increase the number of partitions for an existing topic?

  • A. kafka-topics.sh --alter --topic --partitions --bootstrap-server localhost:9092
  • B. kafka-topics.sh --create --topic --partitions --bootstrap-server localhost:9092
  • C. kafka-configs.sh --alter --entity-type topics --entity-name --partitions --bootstrap-server localhost:9092
  • D. kafka-console-producer.sh --alter --topic --partitions --bootstrap-server localhost:9092

Answer: A

Explanation: To increase the number of partitions for an existing topic, you should use the kafka-topics.sh command with the --alter option and specify the --partitions option with the new number of partitions.

Question 15

How can you view the log of a specific Kafka topic?

  • A. kafka-log-dirs.sh --describe --topic --bootstrap-server localhost:9092
  • B. kafka-console-consumer.sh --topic --from-beginning --bootstrap-server localhost:9092
  • C. kafka-topics.sh --describe --topic --bootstrap-server localhost:9092
  • D. kafka-console-producer.sh --log --topic --bootstrap-server localhost:9092

Answer: B

Explanation: To view the log of a specific Kafka topic, you can use the kafka-console-consumer.sh command with the --from-beginning option to start consuming messages from the earliest available offset in the topic.

Question 16

Which command can be used to change the configuration of a Kafka broker?

  • A. kafka-configs.sh --alter --entity-type brokers --entity-name --add-config = --bootstrap-server localhost:9092
  • B. kafka-configs.sh --alter --entity-type brokers --entity-name --add-config = --zookeeper localhost:2181
  • C. kafka-topics.sh --alter --entity-type brokers --entity-name --add-config = --bootstrap-server localhost:9092
  • D. kafka-topics.sh --alter --entity-type brokers --entity-name --add-config = --zookeeper localhost:2181

Answer: A

Explanation: To change the configuration of a Kafka broker, you should use the kafka-configs.sh command with the --alter option, specifying the --entity-type as brokers and the --entity-name as the broker ID. The --bootstrap-server option specifies the Kafka broker(s) to connect to.

Question 17

How can you reassign partitions in a Kafka cluster?

  • A. kafka-reassign-partitions.sh --execute --reassignment-json-file --bootstrap-server localhost:9092
  • B. kafka-topics.sh --execute --reassignment-json-file --bootstrap-server localhost:9092
  • C. kafka-console-producer.sh --execute --reassignment-json-file --bootstrap-server localhost:9092
  • D. kafka-configs.sh --execute --reassignment-json-file --bootstrap-server localhost:9092

Answer: A

Explanation: To reassign partitions in a Kafka cluster, you should use the kafka-reassign-partitions.sh command with the --execute option and provide the path to the reassignment JSON file.

Question 18

Which command can be used to create a consumer group in Kafka?

  • A. kafka-console-consumer.sh --create-group --group --bootstrap-server localhost:9092
  • B. kafka-consumer-groups.sh --create --group --bootstrap-server localhost:9092
  • C. kafka-topics.sh --create-group --group --bootstrap-server localhost:9092
  • D. Kafka consumer groups are created automatically when a consumer joins the group for the first time.

Answer: D

Explanation: Kafka consumer groups are created automatically when a consumer joins the group for the first time. There is no specific CLI command to create a consumer group manually.

Question 19

How can you move messages from one Kafka topic to another using the CLI?

  • A. kafka-reassign-partitions.sh --source-topic --destination-topic --bootstrap-server localhost:9092
  • B. Use a combination of kafka-console-consumer.sh and kafka-console-producer.sh
  • C. kafka-topics.sh --move --source-topic --destination-topic --bootstrap-server localhost:9092
  • D. kafka-console-producer.sh --move --source-topic --destination-topic --bootstrap-server localhost:9092

Answer: B

Explanation: To move messages from one Kafka topic to another using the CLI, you can use a combination of kafka-console-consumer.sh to consume messages from the source topic and kafka-console-producer.sh to produce them to the destination topic.

Question 20

What is the purpose of the --offset option in the kafka-console-consumer.sh command?

  • A. To specify the starting offset for consuming messages
  • B. To specify the offset at which messages should be deleted
  • C. To specify the offset at which messages should be produced
  • D. To reset the offset for a consumer group

Answer: A

Explanation: The --offset option in the kafka-console-consumer.sh command is used to specify the starting offset for consuming messages. This allows you to start consuming from a specific point in the topic.