Q1: 1. Which service in the Hadoop ecosystem is responsible for managing and processing large datasets?

• A) HDFS
• B) YARN
• C) Hive
• D) Flume

Q2: 2. What is the primary purpose of the Cloudera Manager in a Hadoop environment?

• A) Managing HDFS storage
• B) Monitoring cluster health
• C) Running MapReduce jobs
• D) Processing real-time data

Q3: 3. Which of the following is a key component of Hadoop's data storage layer?

• A) Hive
• B) Flume
• C) HDFS
• D) Pig

Q4: 4. In a Hadoop cluster, what is the role of the NameNode?

• A) Stores data blocks on DataNodes
• B) Executes MapReduce jobs
• C) Manages metadata for files in HDFS
• D) Collects and aggregates logs

Q5: 5. Which service is responsible for resource negotiation and job scheduling in a Hadoop cluster?

• A) Oozie
• B) HBase
• C) YARN
• D) Spark

Q6: 6. What is the primary function of Apache ZooKeeper in a distributed environment?

• A) Data visualization
• B) Job scheduling
• C) Configuration management
• D) Security monitoring

Q7: 7. Which tool is commonly used for managing and querying large datasets stored in Hadoop?

• A) Sqoop
• B) Mahout
• C) Pig
• D) HBase

Q8: 8. What is the role of Apache Hive in a Hadoop ecosystem?

• A) Data ingestion
• B) Data transformation
• C) Data querying
• D) Data visualization

Q9: 9. Which Hadoop component is primarily used for real-time event processing and streaming data?

• A) Flume
• B) Oozie
• C) Spark
• D) MapReduce

Q10: 10. What is the main function of Apache Spark in a big data environment?

• A) Batch processing
• B) Real-time processing
• C) Data visualization
• D) Data encryption

Q11: 11. Which tool is commonly used for importing/exporting data between Hadoop and relational databases?

• A) Hive
• B) Sqoop
• C) Pig
• D) HBase

Q12: 12. In Hadoop, what is the purpose of the ResourceManager?

• A) Manages data storage
• B) Schedules jobs on the cluster
• C) Processes data
• D) Maintains cluster security

Q13: 13. Which Hadoop ecosystem component is commonly used for data warehousing and analytics?

• A) HDFS
• B) Hive
• C) Flume
• D) Oozie

Q14: 14. What is the primary role of Apache Pig in a Hadoop environment?

• A) Data visualization
• B) Data ingestion
• C) Data transformation
• D) Data security

Q15: 15. Which tool is commonly used for workflow scheduling and coordination of Hadoop jobs?

• A) Flume
• B) Oozie
• C) HBase
• D) Mahout

Q16: 16. What is the primary function of Apache Kafka in a big data architecture?

• A) Distributed storage
• B) Data streaming
• C) Batch processing
• D) Data querying

Q17: 17. Which Hadoop component is used for NoSQL database operations?

• A) Hive
• B) HBase
• C) Oozie
• D) Pig

Q18: 18. In a Hadoop cluster, which daemon is responsible for managing the data storage on individual nodes?

• A) ResourceManager
• B) NameNode
• C) DataNode
• D) JobTracker

Q19: 19. What is the primary goal of data partitioning in a distributed computing environment like Hadoop?

• A) Data compression
• B) Data encryption
• C) Data segregation
• D) Data shuffling

Q20: 20. Which tool is commonly used for analyzing and visualizing data stored in Hadoop?

• A) Sqoop
• B) Hue
• C) Flume
• D) Mahout

Q21: 21. What is the primary function of Apache Mahout in a big data environment?

• A) Data visualization
• B) Machine learning
• C) Data integration
• D) Data processing

Q22: 22. Which service is responsible for data ingestion into Hadoop from external sources?

• A) Spark
• B) Flume
• C) Oozie
• D) HBase

Q23: 23. What is the primary purpose of Apache Ambari in a Hadoop environment?

• A) Data processing
• B) Monitoring and management
• C) Data visualization
• D) Security auditing

Q24: 24. Which tool is commonly used for distributed coordination and consensus in a Hadoop cluster?

• A) Apache ZooKeeper
• B) Apache Pig
• C) Oozie
• D) Sqoop

Q25: 25. In Hadoop, what is the role of the JobTracker?

• A) Schedules jobs and monitors task execution
• B) Manages HDFS storage
• C) Processes data on nodes
• D) Collects and aggregates logs