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質問 1：
Select all that applies (select THREE)
A. acks is a producer setting
B. min.insync.replicas matters regardless of the values of acks
C. min.insync.replicas is a producer setting
D. acks is a topic setting
E. min.insync.replicas only matters if acks=all
F. min.insync.replicas is a topic setting
正解：A,E,F
解説: (Pass4Test メンバーにのみ表示されます)
質問 2：
You are sending messages with keys to a topic. To increase throughput, you decide to increase the number of partitions of the topic. Select all that apply.
A. New records with the same key will get written to the partition where old records with that key were written
B. Old records will stay in their partitions
C. All the existing records will get rebalanced among the partitions to balance load
D. New records may get written to a different partition
正解：B,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 3：
The kafka-console-consumer CLI, when used with the default options
A. uses a random group id
B. does not use a group id
C. always uses the same group id
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 4：
Where are the dynamic configurations for a topic stored?
A. In server.properties
B. In an internal Kafka topic __topic_configuratins
C. In Zookeeper
D. On the Kafka broker file system
正解：C
解説: (Pass4Test メンバーにのみ表示されます)
質問 5：
Select all the way for one consumer to subscribe simultaneously to the following topics - topic.history, topic.sports, topic.politics? (select two)
A. consumer.subscribe(Pattern.compile("topic\..*"));
B. consumer.subscribe("topic.history"); consumer.subscribe("topic.sports"); consumer.subscribe("topic.politics");
C. consumer.subscribePrefix("topic.");
D. consumer.subscribe(Arrays.asList("topic.history", "topic.sports", "topic.politics"));
正解：A,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 6：
A topic "sales" is being produced to in the Americas region. You are mirroring this topic using Mirror Maker to the European region. From there, you are only reading the topic for analytics purposes. What kind of mirroring is this?
A. Passive-Passive
B. Active-Active
C. Active-Passive
正解：C
解説: (Pass4Test メンバーにのみ表示されます)
質問 7：
When auto.create.topics.enable is set to true in Kafka configuration, what are the circumstances under which a Kafka broker automatically creates a topic? (select three)
A. Consumer reads message from a topic
B. Client requests metadata for a topic
C. Producer sends message to a topic
D. Client alters number of partitions of a topic
正解：A,B,C
解説: (Pass4Test メンバーにのみ表示されます)
質問 8：
I am producing Avro data on my Kafka cluster that is integrated with the Confluent Schema Registry. After a schema change that is incompatible, I know my data will be rejected. Which component will reject the data?
A. The Confluent Schema Registry
B. The Kafka Broker
C. Zookeeper
D. The Kafka Producer itself
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
Select all that applies (select THREE)
A. acks is a producer setting
B. min.insync.replicas matters regardless of the values of acks
C. min.insync.replicas is a producer setting
D. acks is a topic setting
E. min.insync.replicas only matters if acks=all
F. min.insync.replicas is a topic setting
正解：A,E,F
解説: (Pass4Test メンバーにのみ表示されます)
質問 2：
You are sending messages with keys to a topic. To increase throughput, you decide to increase the number of partitions of the topic. Select all that apply.
A. New records with the same key will get written to the partition where old records with that key were written
B. Old records will stay in their partitions
C. All the existing records will get rebalanced among the partitions to balance load
D. New records may get written to a different partition
正解：B,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 3：
The kafka-console-consumer CLI, when used with the default options
A. uses a random group id
B. does not use a group id
C. always uses the same group id
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
質問 4：
Where are the dynamic configurations for a topic stored?
A. In server.properties
B. In an internal Kafka topic __topic_configuratins
C. In Zookeeper
D. On the Kafka broker file system
正解：C
解説: (Pass4Test メンバーにのみ表示されます)
質問 5：
Select all the way for one consumer to subscribe simultaneously to the following topics - topic.history, topic.sports, topic.politics? (select two)
A. consumer.subscribe(Pattern.compile("topic\..*"));
B. consumer.subscribe("topic.history"); consumer.subscribe("topic.sports"); consumer.subscribe("topic.politics");
C. consumer.subscribePrefix("topic.");
D. consumer.subscribe(Arrays.asList("topic.history", "topic.sports", "topic.politics"));
正解：A,D
解説: (Pass4Test メンバーにのみ表示されます)
質問 6：
A topic "sales" is being produced to in the Americas region. You are mirroring this topic using Mirror Maker to the European region. From there, you are only reading the topic for analytics purposes. What kind of mirroring is this?
A. Passive-Passive
B. Active-Active
C. Active-Passive
正解：C
解説: (Pass4Test メンバーにのみ表示されます)
質問 7：
When auto.create.topics.enable is set to true in Kafka configuration, what are the circumstances under which a Kafka broker automatically creates a topic? (select three)
A. Consumer reads message from a topic
B. Client requests metadata for a topic
C. Producer sends message to a topic
D. Client alters number of partitions of a topic
正解：A,B,C
解説: (Pass4Test メンバーにのみ表示されます)
質問 8：
I am producing Avro data on my Kafka cluster that is integrated with the Confluent Schema Registry. After a schema change that is incompatible, I know my data will be rejected. Which component will reject the data?
A. The Confluent Schema Registry
B. The Kafka Broker
C. Zookeeper
D. The Kafka Producer itself
正解：A
解説: (Pass4Test メンバーにのみ表示されます)
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早速勉強していきたいと思います！。ここで感謝を申し上げます。ありがとうございました。