Free Certified Developer for Apache Kafka Exam CCDAK Exam Practice Test

What is the default port that the KSQL server listens on?

• 9092
  
• 8088
  
• 8083
  
• 2181
  

A Zookeeper ensemble contains 5 servers. What is the maximum number of servers that can go missing and the ensemble still run?

• 3
  
• 4
  
• 2
  
• 1
  

You are using JDBC source connector to copy data from 3 tables to three Kafka topics. There is one connector created with max.tasks equal to 2 deployed on a cluster of 3 workers. How many tasks are launched?

• 2
  
• 1
  
• 3
  
• 6
  

A client connects to a broker in the cluster and sends a fetch request for a partition in a topic. It gets an exception Not Leader For Partition Exception in the response. How does client handle this situation?

• Get the Broker id from Zookeeper that is hosting the leader replica and send request to it
  
• Send metadata request to the same broker for the topic and select the broker hosting the leader replica
  
• Send metadata request to Zookeeper for the topic and select the broker hosting the leader replica
  
• Send fetch request to each Broker in the cluster
  

You have a Zookeeper cluster that needs to be able to withstand the loss of 2 servers and still be able to function. What size should your Zookeeper cluster have?

• 4
  
• 5
  
• 2
  
• 3
  
• 6
  

Which actions will trigger partition rebalance for a consumer group? (select three)

• Increase partitions of a topic
  
• Remove a broker from the cluster
  
• Add a new consumer to consumer group
  
• A consumer in a consumer group shuts down
  Add a broker to the cluster
  

If I want to send binary data through the REST proxy, it needs to be base64 encoded. Which component needs to encode the binary data into base 64?

• The Producer
  
• The Kafka Broker
  
• Zookeeper
  
• The REST Proxy
  

A Kafka producer application wants to send log messages to a topic that does not include any key. What are the properties that are mandatory to configure for the producer configuration? (select three)

• bootstrap.servers
  
• partition
  
• key.serializer
  
• value.serializer
  
• key
  
• value
  

Which of the following setting increases the chance of batching for a Kafka Producer?

• Increase batch.size
  
• Increase message.max.bytes
  
• Increase the number of producer threads
  
• Increase linger.ms
  

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?

• Passive-Passive
  
• Active-Active
  
• Active-Passive