1. What is Apache Kafka primarily used for?
a) Data storage
b) Data processing
c) Data communication
d) Data visualization
Answer: c) Data communication
2. Which of the following is not a core component of Apache Kafka?
a) Kafka Producer
b) Kafka Broker
c) Kafka Consumer
d) Kafka Scheduler
Answer: d) Kafka Scheduler
3. Kafka topics are divided into which of the following?
a) Partitions
b) Blocks
c) Segments
d) Fragments
Answer: a) Partitions
4. In Kafka, what is the role of a Kafka Producer?
a) Consuming messages from topics
b) Storing messages in Kafka
c) Sending messages to Kafka topics
d) Managing Kafka brokers
Answer: c) Sending messages to Kafka topics
5. Which Kafka component is responsible for storing the incoming messages in Kafka?
a) Kafka Producer
b) Kafka Broker
c) Kafka Consumer
d) Kafka Stream
Answer: b) Kafka Broker
6. What is the purpose of Kafka Consumer Groups?
a) Grouping multiple producers together
b) Grouping multiple Kafka brokers together
c) Grouping multiple consumers for parallel processing
d) Grouping Kafka topics for replication
Answer: c) Grouping multiple consumers for parallel processing
7. Kafka message offsets are used for:
a) Maintaining topic hierarchy
b) Tracking the position of a consumer in a partition
c) Defining topic access control
d) Timestamping messages
Answer: b) Tracking the position of a consumer in a partition
8. Which messaging model does Kafka follow?
a) Publish-Subscribe
b) Point-to-Point
c) Multicast
d) Broadcast
Answer: a) Publish-Subscribe
9. How does Kafka ensure fault tolerance and data durability?
a) Replicating data across multiple Kafka brokers
b) Frequent backups of data
c) Strong encryption of messages
d) Real-time data validation
Answer: a) Replicating data across multiple Kafka brokers
10. Which programming language is commonly used to write Kafka Producers and Consumers?
a) Java
b) Python
c) Ruby
d) C#
Answer: a) Java
11. What is the role of ZooKeeper in Apache Kafka?
a) Managing Kafka topics
b) Coordinating and managing Kafka brokers
c) Securing Kafka communication
d) Monitoring Kafka performance
Answer: b) Coordinating and managing Kafka brokers
12. Which command is used to start a Kafka server from the command line?
a) start-kafka-server
b) run-kafka
c) kafka-server-start
d) start-server
Answer: c) kafka-server-start
13. Which protocol is commonly used for communication between Kafka clients and servers?
a) HTTP
b) TCP
c) WebSocket
d) REST
Answer: b) TCP
14. What is the maximum message size supported by Kafka?
a) 1 MB
b) 5 MB
c) 10 MB
d) It depends on the Kafka server configuration.
Answer: d) It depends on the Kafka server configuration.
15. Which Kafka component is responsible for managing access control and authentication?
a) Kafka Producer
b) Kafka Broker
c) Kafka Consumer
d) Kafka Security Manager
Answer: b) Kafka Broker
16. How are Kafka topics and partitions related?
a) Each topic has multiple partitions.
b) Each partition has multiple topics.
c) Topics and partitions are not related.
d) Each topic has a single partition.
Answer: a) Each topic has multiple partitions.
17. In a Kafka cluster, what is the role of the leader partition?
a) It contains all the messages produced by producers.
b) It is responsible for processing consumer requests.
c) It is responsible for managing the partition's replicas.
d) It acts as a backup for the follower partitions.
Answer: c) It is responsible for managing the partition's replicas.
18. What is the purpose of Kafka Connect?
a) To connect Kafka to external databases
b) To connect Kafka to external REST APIs
c) To connect Kafka to external message brokers
d) To connect Kafka to external file systems
Answer: a) To connect Kafka to external databases
19. Which Kafka feature allows data to be retained for a specified duration, even if it is consumed?
a) Data Replication
b) Log Compaction
c) Data Retention
d) Data Compression
Answer: c) Data Retention
20. Which tool can be used to monitor Kafka cluster health and performance?
a) Kafka Manager
b) Kafka ZooKeeper
c) Kafka Explorer
d) Kafka Sentinel
Answer: a) Kafka Manager
21. What is the recommended way to ensure message ordering within a partition in Kafka?
a) Using Kafka Producers with unique message IDs
b) Using Kafka Consumers with ordered message processing
c) Using a single partition for the topic
d) Using timestamp-based message ordering
Answer: c) Using a single partition for the topic
22. Which Kafka client library is available for Python?
a) PyKafka
b) Kafka-Python
c) KafkaJ
d) Kafka-Ruby
Answer: b) Kafka-Python
23. What does the "acks" parameter in Kafka Producer configuration control?
a) The number of acknowledgments the producer requires from the broker
b) The number of partitions for a topic
c) The number of consumers in a consumer group
d) The number of retries for producing a message
Answer: a) The number of acknowledgments the producer requires from the broker
24. Which protocol is used for Kafka data serialization?
a) JSON
b) XML
c) Avro
d) Protocol Buffers (protobuf)
Answer: c) Avro
25. In Kafka, what is the purpose of a Kafka Offset?
a) It specifies the Kafka broker address.
b) It is a unique identifier for a Kafka topic.
c) It is a position marker for a specific message within a partition.
d) It represents the Kafka partition number.
Answer: c) It is a position marker for a specific message within a partition.
26. How can you achieve data replication in Kafka for fault tolerance?
a) Enable data backup in Kafka Producer.
b) Configure multiple Kafka Consumers for the same topic.
c) Set a replication factor for the topic.
d) Implement a separate Kafka topic for replication.
Answer: c) Set a replication factor for the topic.
27. What is a Kafka Broker ID?
a) It is a unique identifier for a Kafka topic.
b) It is a unique identifier for a Kafka Producer.
c) It is a unique identifier for a Kafka Consumer.
d) It is a unique identifier for a Kafka broker in a cluster.
Answer: d) It is a unique identifier for a Kafka broker in a cluster.
28. Which Kafka tool is used for real-time event processing and stream processing?
a) Kafka Streams
b) Kafka MirrorMaker
c) Kafka Schema Registry
d) Kafka Avro Converter
Answer: a) Kafka Streams
29. What is the role of the Kafka Schema Registry?
a) To store Kafka topic schemas
b) To manage Kafka broker configurations
c) To store Kafka message offsets
d) To validate Kafka consumer access
Answer: a) To store Kafka topic schemas
30. Which of the following is a valid Kafka Producer acknowledgment mode?
a) all
b) once
c) confirm
d) acknowledged
Answer: a) all
31. How can you ensure data retention in Kafka for an extended period?
a) Increase the Kafka retention period configuration.
b) Use a smaller replication factor.
c) Reduce the number of partitions in a topic.
d) Enable automatic message deletion.
Answer: a) Increase the Kafka retention period configuration.
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