Deploying models on bigdata platforms like Hadoop and Spark
1 Since dataset is huge I can make use any disributed platform for faster computaion and model creation right?


Yes, that is what distributed platforms are for.


  2 Once the model is ready, then there is no need of these disributed
  platform right ? or are they needed for feature extractions ?


Yes for data extraction, feature generation for scoring and scoring your dataset (the actual reason you trained at model for!), you would still need the platform as that data is also likely to be huge.