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Confluent CCDAK Exam Overview:

Certification Vendor:	Confluent
Exam Name:	Confluent Certified Developer for Apache Kafka (CCDAK) Certification Exam
Exam Number:	CCDAK
Certificate Validity Period:	3 years
Real Exam Qty:	60
Exam Format:	Multiple choice, Multiple select
Exam Price:	$150 USD
Exam Duration:	90 minutes
Related Certifications:	Confluent Certified Administrator for Apache Kafka (CCAK) Confluent Certified Developer for Apache Kafka (CCDAK)
Available Languages:	English
Passing Score:	70%
Recommended Training:	Kafka Fundamentals Course Apache Kafka Developer Training (Confluent)
Exam Registration:	Confluent Certification Portal Confluent Training and Exams
Sample Questions:	Confluent CCDAK Sample Questions
Exam Way:	Online proctored exam or authorized testing center
Pre Condition:	Basic understanding of Java or another JVM language and familiarity with distributed systems concepts is recommended.
Official Syllabus URL:	https://www.confluent.io/certification/

>> CCDAK絶対合格 <<

CCDAK過去問無料、CCDAK資格模擬

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CCDAK認定試験は、Kafkaコンセプトの深い理解とKafkaでの実務経験が必要な難しい試験です。この試験には、多肢選択問題が含まれ、候補者はKafkaの知識を実世界のシナリオに適用できる能力を示す必要があります。試験の準備にあたっては、試験の目的を確認し、オンラインコースや練習試験などのトレーニングリソースを活用することが推奨されます。

Confluent Certified Developer for Apache Kafka Certification Examination 認定 CCDAK 試験問題 (Q89-Q94):

質問 # 89
Your Kafka cluster has five brokers. The topic t1 on the cluster has:
* Two partitions
* Replication factor = 4
* min.insync.replicas = 3You need strong durability guarantees for messages written to topic t1.You configure a producer acks=all and all the replicas for t1 are in-sync.How many brokers need to acknowledge a message before it is considered committed?

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

正解：D

解説：
With acks=all, the leader waits formin.insync.replicasto acknowledge the message. Since min.insync.
replicas=3, Kafka will only commit the messageonce 3 brokers (leader + 2 followers)confirm they have the message.
FromKafka Documentation > Acks and Durability:
"If acks=all is specified, the producer will wait until the full set of in-sync replicas has acknowledged the record. The minimum number of in-sync replicas is controlled by min.insync.replicas." Even though the replication factor is 4, only3 acknowledgments are needed, as defined by min.insync.
replicas.
Reference:Apache Kafka Producer Configs > acks, min.insync.replicas

質問 # 90
In Avro, adding an element to an enum without a default is a __ schema evolution

A. backward
B. full
C. forward
D. breaking

正解：D

解説：
Since Confluent 5.4.0, Avro 1.9.1 is used. Since default value was added to enum complex type , the schema resolution changed from:
(<1.9.1) if both are enums:** if the writer's symbol is not present in the reader's enum, then an error is signalled. **(>=1.9.1) if both are enums:
if the writer's symbol is not present in the reader's enum and the reader has a default value, then that value is used, otherwise an error is signalled.

質問 # 91
In Avro, removing a field that does not have a default is a __ schema evolution

A. backward
B. breaking
C. full
D. forward

正解：A

解説：
Clients with new schema will be able to read records saved with old schema.

質問 # 92
You create a topic with five partitions.
What can be assumed about messages read from that topic by a single consumer group?

A. All the messages will be read from exactly one Broker by the consumer group.
B. The consumer group can only read the same number of messages from all the partitions.
C. Messages can be consumed by a maximum of five consumers in the same consumer group.
D. Messages read from any one partition by the consumer group will all have exactly the same key.

正解：C

質問 # 93
Your Kafka cluster has five brokers. The topic t1 on the cluster has two partitions, and it has replication.factor
= 4, min.insync.replicas = 3.
You want to have strong durability guarantees for messages written to topic t1.
If you configure a producer 'acks=all', how many brokers need to acknowledge a message before it is considered committed?

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

正解：D

質問 # 94
......

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