CCDAK題庫更新，CCDAK考試資訊

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CCDAK題庫更新, CCDAK考試資訊, CCDAK考試大綱, CCDAK認證考試, CCDAK測試題庫

順便提一下，可以從雲存儲中下載KaoGuTi CCDAK考試題庫的完整版：https://drive.google.com/open?id=1ckFSWEmQc8NDBAQARiOfH7UlFg45-hra

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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
Exam Format: Multiple choice, Multiple select
Exam Duration: 90 minutes
Available Languages: English
Exam Price: $150 USD
Certificate Validity Period: 3 years
Related Certifications: Confluent Certified Administrator for Apache Kafka (CCAK)
Confluent Certified Developer for Apache Kafka (CCDAK)
Real Exam Qty: 60
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題庫更新 <<

Confluent CCDAK考試資訊，CCDAK考試大綱

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CCDAK 認證考試涵蓋廣泛的主題，包括 Kafka 架構、Kafka 核心概念、Kafka 部署、Kafka API、Kafka Connect、Kafka Streams 和 Confluent Cloud。考試由 60 道多選題組成，必須在 90 分鐘內完成。為通過考試，考生必須得分 70% 或更高。CCDAK 認證有效期為兩年，過期後候選人必須重新認證以維持其認證狀態。獲得 CCDAK 認證表明個人能夠使用 Apache Kafka 構建可擴展、容錯和高性能的流應用程序，使其成為任何涉及數據流技術的組織的寶貴資產。

最新的 Confluent Certified Developer CCDAK 免費考試真題 (Q64-Q69):

問題 #64
Which two producer exceptions are examples of the class RetriableException? (Select two.)

  • A. NotEnoughReplicasException
  • B. RecordTooLargeException
  • C. LeaderNotAvailableException
  • D. AuthorizationException

答案：A,C

解題說明：
BothLeaderNotAvailableExceptionandNotEnoughReplicasExceptionare subclasses of RetriableException, which representstransient issuesthat may succeed upon retry.
FromApache Kafka Java Client Documentation:
"RetriableException indicates that the request can be retried. This includes network errors and certain broker- side failures like leader not available or not enough replicas."
* RecordTooLargeException and AuthorizationException arenon-retriablebecause they represent client misconfigurations or access issues.
Reference:Kafka Error Handling Guide > Retriable vs. Non-Retriable Exceptions


問題 #65
(You are writing to a Kafka topic with producer configuration acks=all.
The producer receives acknowledgements from the broker but still creates duplicate messages due to network timeouts and retries.
You need to ensure that duplicate messages are not created.
Which producer configuration should you set?)

  • A. retries=0max.in.flight.requests.per.connection=5enable.idempotence=true
  • B. retries=2147483647max.in.flight.requests.per.connection=1enable.idempotence=true
  • C. retries=2147483647max.in.flight.requests.per.connection=5enable.idempotence=false
  • D. enable.auto.commit=true

答案：B

解題說明：
The official Apache Kafka producer documentation states that setting enable.idempotence=true guarantees that messages are written to a partition exactly once, even in the presence of retries caused by network failures or broker timeouts. This feature prevents duplicate records by assigning producer sequence numbers and validating them on the broker side.
For idempotent producers to work correctly, retries must be enabled, which is why Kafka recommends a very large value such as retries=2147483647. Additionally, limiting max.in.flight.requests.per.connection to 1 ensures strict ordering during retries, preventing message reordering in older Kafka versions and providing the safest configuration.
Option A is irrelevant to producers. Option B explicitly disables idempotence, which causes duplicates.
Option D disables retries, which increases the risk of message loss.
Therefore, the correct and fully documented solution to eliminate duplicate messages is enabling idempotence with retries and a safe in-flight request limit, as shown in Option C.


問題 #66
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

答案：A

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


問題 #67
Partition leader election is done by

  • A. Vote amongst the brokers
  • B. The consumers
  • C. The Kafka Broker that is the Controller
  • D. Zookeeper

答案：D

解題說明：
The Controller is a broker that is responsible for electing partition leaders


問題 #68
A consumer wants to read messages from partitions 0 and 1 of a topic topic1. Code snippet is shown below.
consumer.subscribe(Arrays.asList("topic1"));
List<TopicPartition> pc = new ArrayList<>();
pc.add(new PartitionTopic("topic1", 0));
pc.add(new PartitionTopic("topic1", 1));
consumer.assign(pc);

  • A. This works fine. subscribe() will subscribe to the topic and assign() will assign partitions to the consumer.
  • B. Throws IllegalStateException

答案：B

解題說明：
subscribe() and assign() cannot be called by the same consumer, subscribe() is used to leverage the consumer group mechanism, while assign() is used to manually control partition assignment and reads assignment


問題 #69
......

CCDAK考試資訊: https://kaoguti.com/CCDAK_exam-pdf.html

P.S. KaoGuTi在Google Drive上分享了免費的、最新的CCDAK考試題庫：https://drive.google.com/open?id=1ckFSWEmQc8NDBAQARiOfH7UlFg45-hra

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