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Before taking the Confluent CCDAK exam, developers should have a good understanding of Kafka fundamentals, including topics, partitions, brokers, producers, consumers, and Kafka Connect. They should also be proficient in Java or Scala programming languages and have experience working with REST APIs and command-line interfaces. It is recommended that developers attend the Confluent Developer Training or have equivalent experience before taking the exam.
Confluent CCDAK (Confluent Certified Developer for Apache Kafka) Certification Examination is a comprehensive test designed to evaluate the proficiency of developers in building and maintaining Apache Kafka-based applications. CCDAK exam is targeted towards software developers, data architects, and data engineers who are looking for a way to validate their knowledge and skills in building real-time, scalable, and fault-tolerant distributed systems using Apache Kafka.
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The Confluent CCDAK Exam covers various topics, including Kafka architecture, messaging patterns, configuration, security, and performance tuning. Developers who pass the exam will demonstrate their ability to develop and deploy high-performance, reliable, and scalable Kafka applications that meet the needs of modern data-driven businesses. Confluent Certified Developer for Apache Kafka Certification Examination certification is an excellent way for developers to showcase their expertise in Kafka and differentiate themselves in the job market.
NEW QUESTION # 80
Clients that connect to a Kafka cluster are required to specify one or more brokers in the bootstrap.
servers parameter.
What is the primary advantage of specifying more than one broker?
Answer: A
Explanation:
The bootstrap.servers setting is used by clients (producers and consumers) toinitially connectto the Kafka cluster. It does not need to list all brokers-just a few that are up and reachable. The client will then use the cluster metadata to discover the full broker list.
FromKafka Java Client Configuration Docs:
"This is a list of host/port pairs to use for establishing the initial connection to the Kafka cluster. The client will make use of all servers irrespective of which servers are specified here for bootstrapping." Hence,listing multiple brokers provides redundancyand fault tolerance in the event one is down during client startup.
Reference:Apache Kafka Java Client Configuration > bootstrap.servers
NEW QUESTION # 81
You create a topic with five partitions.
What can be assumed about messages read from that topic by a single consumer group?
Answer: A
NEW QUESTION # 82
A topic has three replicas and you set min.insync.replicas to 2. If two out of three replicas are not available, what happens when a consume request is sent to broker?
Answer: B
Explanation:
With this configuration, a single in-sync replica is still readable, but not writeable if the producer using acks=all
NEW QUESTION # 83
You have a Kafka client application that has real-time processing requirements.
Which Kafka metric should you monitor?
Answer: A
Explanation:
For real-time applications, thekey metric to monitor is consumer lag- the difference between thelatest offset on the brokerand thelast committed offset by the consumer.
FromKafka Monitoring Guide:
"Consumer lag is the most important metric for real-time applications. It tells you how far behind the consumer is from the latest data in Kafka."
* B relates to replication, not client responsiveness.
* C tracks group membership stability, not data delay.
* D tracks input throughput, not processing latency.
Reference:Kafka Operations > Monitoring > Consumer Lag
NEW QUESTION # 84
A Zookeeper ensemble contains 3 servers. Over which ports the members of the ensemble should be able to communicate in default configuration? (select three)
Answer: A,B,F
Explanation:
2181 - client port, 2888 - peer port, 3888 - leader port
NEW QUESTION # 85
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