FDA SET 1 D1

What is Big Data?

• Data that is easy to analyze
• Data that is too large to be processed by traditional database systems
• Data that is stored in Excel sheets
• Data that is encrypted

What does the CAP theorem state?

• Data should be Consistent, Available, and Partition-tolerant
• Data can be either Consistent, Available, or Partition-tolerant, but not all three
• Data should be Consistent, Available, and Persisted
• Data should be Consistent, Accessible, and Persistent

What is the primary use of Hadoop's HDFS?

• Data analysis
• Data storage
• Data visualization
• Data processing

What is the role of the Reduce function in MapReduce?

• To sort the data
• To map the data
• To filter the data
• To aggregate the data

In the context of MapReduce, what is shuffling?

• The process of copying the output of the Map tasks to the Reducer
• The process of dividing the input data into smaller chunks
• The process of sorting the input data
• The process of reducing the data size

Which of the following is a characteristic of a NoSQL database?

• ACID transactions
• Structured schema
• Horizontal scalability
• Fixed schema

Which of the following is NOT a component of the Hadoop ecosystem?

• Hive
• Spark
• MongoDB
• HBase

Which Hadoop component is responsible for the actual processing of the data?

• YARN
• HDFS
• MapReduce
• Hive

Which of the following is a disadvantage of decision trees?

• Prone to overfitting
• Easy to interpret
• Suitable for both numerical and categorical data
• Robust to outliers

What does Market Basket Analysis aim to discover?

• Customer demographics
• Product associations and purchasing patterns
• Customer lifetime value
• Customer churn rate