What is the role of Prometheus in Kafka monitoring?
It provides a user interface for visualizing Kafka metrics
It acts as a message broker between Kafka and monitoring tools
It collects and stores Kafka metrics as time-series data
It analyzes Kafka logs to identify performance bottlenecks
What is the significance of the 'unclean.leader.election.enable' configuration parameter during broker failures?
It ensures no data loss during leader election but might increase unavailability.
It allows for faster leader election but might lead to data loss.
It defines the time a broker is considered dead before triggering a leader election.
It controls the replication factor for partitions.
How can you access Kafka's JMX metrics?
By querying the Kafka command-line tools
By reading the Kafka log files located on the broker servers
By accessing the Kafka web console
By connecting to the Kafka broker's JMX port using a JMX client
What type of metrics would you monitor to track the rate at which messages are being produced to a Kafka topic?
Replication lag metrics
Producer request rate metrics
Broker disk usage metrics
Consumer lag metrics
What is the primary purpose of monitoring Kafka metrics?
To identify and troubleshoot security vulnerabilities in Kafka
To understand and optimize Kafka cluster performance and health
To debug application code that interacts with Kafka
To track the number of messages consumed by each consumer group
Which partitioning strategy in Kafka is most suitable when you need messages with the same key to be processed by the same consumer instance?
Random Partitioning
Round Robin Partitioning
Key-based Partitioning
Time-based Partitioning
Which of the following is a valid KSQL command to create a new stream from an existing Kafka topic named 'sensor_data'?
CREATE STREAM sensor_data_stream (sensorId INT, value DOUBLE) WITH (kafka_topic='sensor_data', value_format='JSON');
CREATE TABLE sensor_data_stream AS SELECT * FROM sensor_data;
DEFINE STREAM sensor_data_stream (sensorId INT, value DOUBLE) WITH (topic='sensor_data', format='JSON');
INSERT INTO sensor_data_stream SELECT * FROM sensor_data;
What is the role of a Kafka Controller in a cluster?
Monitoring and managing the health of brokers
Managing message consumption rates
Handling data replication between brokers
Performing load balancing of messages
What is the primary function of Kafka Streams?
Managing cluster resources for Kafka brokers
Performing real-time data analysis and transformations on streams
Storing and persisting streaming data
Guaranteeing exactly-once message delivery
Which component in Kafka is responsible for managing the state of tasks and ensuring fault tolerance within a Kafka Streams application?
Kafka Streams API
Kafka Producer
ZooKeeper
Kafka Connect