CS-702-D Big Data - Jun 2025 Question Paper

Under each question, How to answer lists the points an answer should cover, outlined by CampusPrep from the syllabus. Check the details against your textbook.

1. 7 Marks
   aWhat are the different types of Hadoop configuration files? Discuss.
   How to answer

   • List Hadoop configuration files: core-site.xml, hdfs-site.xml, mapred-site.xml, yarn-site.xml, hadoop-env.sh
   • State purpose of each file with key properties
   • Explain default vs site-specific configuration and precedence
2. 7 Marks
   bDraw HDFS architecture. Explain any two commands of HDFS from the following commands with syntax atleast one example of each.
   How to answer

   • Draw HDFS architecture showing NameNode, DataNodes, client, blocks and replication
   • Explain syntax of selected HDFS shell commands
   • Give at least one example for each of two commands
3. 7 Marks
   aWhat is MapReduce? Explain working of various phases of MapReduce with appropriate example and diagram.
   How to answer

   • Define MapReduce programming model
   • Explain phases: Input split, Map, Shuffle/Sort, Reduce, Output with diagram
   • Give word-count or similar example and data flow
4. 7 Marks
   bWhat is Hadoop Ecosystem? Discuss various components of Hadoop Ecosystem.
   How to answer

   • Define Hadoop Ecosystem
   • List components: HDFS, YARN, MapReduce, Hive, Pig, HBase, Sqoop, Flume, etc.
   • Brief role of each component in ecosystem
5. 7 Marks
   aWhat is MapReduce programming? Where is it used and why?
   How to answer

   • Define MapReduce programming
   • Explain where it is used: large-scale batch processing of unstructured data
   • Explain why: scalability, fault tolerance, parallel processing
6. 7 Marks
   bExplain the HiveQL-Select-Order By with suitable example.
   How to answer

   • Explain HiveQL SELECT syntax
   • Explain ORDER BY semantics and difference from SORT BY
   • Give example query with table and ordered output
7. 14 Marks
   What is NoSQL database? List the differences between NoSQL and relational databases. Explain in brief various types of NoSQL databases in practice.
   How to answer

   • Define NoSQL database and its characteristics
   • Compare NoSQL vs relational on schema, scalability, consistency, query language
   • Briefly explain types: document, key-value, column-family, graph with examples
8. 7 Marks
   aWhat do you mean by social network mining? Write its applications.
   How to answer

   • Define social network mining
   • Explain graph-based extraction of patterns/communities
   • List applications: recommendation, fraud detection, sentiment analysis
9. 7 Marks
   bWrite difference between MangoDB and Hadoop.
   How to answer

   • Define MongoDB document store vs Hadoop distributed framework
   • Compare on data model, architecture, use case, scalability
   • Summarize when to use each
10. 14 Marks
    Explain the following term.

    1. i)ETL processing
    2. ii)Properties of Big data systems
    3. iii)Data architectural patterns
    How to answer

    • Define ETL: Extract, Transform, Load steps with example
    • List properties of Big Data systems: volume, velocity, variety, veracity, value
    • Explain data architectural patterns: lambda, kappa, data lake etc.
11. 14 Marks
    What is MongoDB? Explain in brief key features of MongoDB. Show basic CRUD operations in Mongo DB with proper example.
    How to answer

    • Define MongoDB document-oriented NoSQL database
    • Explain key features: schema-less, indexing, replication, sharding
    • Show CRUD: insert, find, update, remove with examples
12. 14 Marks
    Write a short notes (any three)

    1. i)Recommender system
    2. ii)Social Network as a graph
    3. iii)Traditional versus Big data
    4. iv)Data types of Pig
    How to answer

    • Select any three topics for short notes
    • Give definition, key concepts and example for each
    • Mention applications/relevance to Big Data