JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD
JAWAHARLAL NEHRU TECHNOLOGICAL UNIVERSITY HYDERABAD MCA 2018 BIG DATA ANALYTICS Previous Question Paper (June/July - 2018 - R15)
Part A is compulsory which carries 25 marks. Answer all questions in Part A. Part B consists of 5 Units. Answer any one full question from each unit. Each question carries 10 marks and may have a, b, c as sub questions.
Part A
What are the challenges with big data?
Answer
The primary challenges of big data include Volume, dealing with the massive scale of data; Velocity, the speed at which data is generated and must be processed; Variety, the complexity of handling structured, semi-structured, and unstructured data; Veracity, ensuring the quality and accuracy of data; and Value, the difficulty of extracting meaningful insights from large datasets.
What is the difference between reporting and analysis?
Answer
Reporting focuses on summarizing historical data to provide a snapshot of what has happened, typically through predefined metrics and dashboards. Analysis involves exploring data to understand the 'why' behind the trends, utilizing statistical techniques and predictive modeling to gain actionable insights and support future decision-making.
Make a comparison of RDBMS and HBase.
Answer
Sign in to view the complete answer paper.
What are the challenges faced by distributed computing?
Answer
Sign in to view the complete answer paper.
Compare web analytics with social media analytics.
Answer
Sign in to view the complete answer paper.
Part B
What is big data analytics? Discuss various applications of big data analytics.
Answer
Sign in to view the complete answer paper.
What traits need to be honed by a technical professional to play the role of a data scientist? Discuss the responsibilities of a data scientist.
Answer
Sign in to view the complete answer paper.
What is meant by predictive analytics? With suitable examples explain the need of it for the market/ industry.
Answer
Sign in to view the complete answer paper.
Describe the features of IBM SPSS tool for data analytics.
Answer
Sign in to view the complete answer paper.
With relevant examples discuss the techniques to optimize map reduce jobs.
Answer
Sign in to view the complete answer paper.
What are the various components in Hadoop eco system? Briefly explain each component use.
Answer
Sign in to view the complete answer paper.
What are the main features of NoSQL? Can it eliminate RDBMS? Explain the role of NoSQL in big data handling.
Answer
Sign in to view the complete answer paper.
What is a cluster? What is its importance? Discuss the features of Hadoop cluster for HDFS.
Answer
Sign in to view the complete answer paper.
What is sentiment analysis? Demonstrate it on Twitter data. Assume suitable tweets to explain your answer.
Answer
Sign in to view the complete answer paper.
Explain the steps in text mining process and give the famous applications of text mining.
Answer
Sign in to view the complete answer paper.