BigData Quiz-1

In a MapReduce job, which of the following represents the input data format?

• SequenceFile

• TextFile

• CSVFile

• SequenceFile and TextFile

Which of the following is the default input format used in MapReduce for reading text files?

• KeyValueTextInputFormat

• TextInputFormat

• SequenceFileInputFormat

• NullInputFormat

Which of the following is a major limitation of traditional relational database management systems (RDBMS) when handling big data?

• High scalability

• Difficulty in handling unstructured data

• Support for distributed processing

• Efficient data storage

What is the primary challenge of scaling traditional relational databases for big data processing?

• They rely on a single server for processing and storage

• They do not support indexing mechanisms

• They do not handle data transactions well

• They are difficult to manage due to distributed architecture

What is one major issue with traditional systems when dealing with large volumes of data in a fast-paced environment?

• Slow response times due to centralized storage

• High cost of storage

• Lack of data redundancy

• Poor performance on small datasets

Which statement best describes the difference between Hadoop and RDBMS in terms of scalability?

• RDBMS supports horizontal scalability while Hadoop supports vertical scalability

• Hadoop supports horizontal scalability, while RDBMS supports vertical scalability

• Both support horizontal scalability

• Both support vertical scalability

Which of the following is a key difference between Hadoop and traditional RDBMS in terms of data storage?

• Hadoop stores data in tables, whereas RDBMS stores data as files

• RDBMS uses distributed storage, while Hadoop uses a single storage system

• Hadoop uses HDFS for distributed storage, while RDBMS uses a single-node system

• Hadoop stores structured data, while RDBMS stores unstructured data

Which of the following is a feature of Hadoop that makes it suitable for processing big data?

• It uses a centralized database for faster processing

• It allows data to be processed in parallel across a distributed cluster

• It only supports structured data

• It uses the SQL query language for data processing

Which company was the first to commercially support Hadoop?

• Microsoft

• Google

• IBM

• Yahoo!

What open-source project is the foundation of Hadoop?

• HDFS

• Apache Hadoop

• Google File System (GFS)

• MapReduce