BIGDATA

  ASSIGNMENTS BIG DATA  UNITS  I ,II ,III ,IV ,V Assignmnt -1 (unit-1) 1.Define Big Data  2.What is Big Data  Analytics  3.Explain  Structured  and Semi-structured data give examples  4.Dicusss challenges posed by bigdata  ASSIGNMENT-2 (UNIT-II) 1.Compare  and contrast  NOSQL VS  RELATIONAL DATABASES  2.What is big data ?why we need to analyze big data .list out characteristics of bigdata and challenges in bigdata 3.Define  HDFS  .Discuss HDFS Architecture  4. Explian  in detail Hadoop distributes file system  5.explain mapper ,reducer ,combiner  6.discuss in brief about mapper code and reducer code ASSIGNMENT -3(UNIT-III) 1.what is version stamp ? 2.Define aggregates  3.explian column -family stores ? 4.Define schema  less databases  ,materialized views  5.explain graph databases with examples  6.define sharding ,peer to peer replication  ASSIGNMENT -4(UNIT-IV) 1. Explain in brief about Hadoop MapReduce paradigm  2. Explain about the failures in YARN 3.Discuss  about Speculative Exec