sharaththungathurthi.hashnode.devImpala Interview QuestionsHere are some questions and answers related to Impala, covering various aspects of its usage, architecture, and functionality. These are useful for interview preparation or as a study guide. 1. What is Impala? Answer:Impala is an MPP (Massively Paral...Dec 22, 2024·6 min read
sharaththungathurthi.hashnode.devAWS LambdaHere are some commonly asked questions and answers related to AWS Lambda: 1. What is AWS Lambda? Answer:AWS Lambda is a serverless computing service that lets you run your code without managing any servers. You only pay for the time your code runs. L...Dec 18, 2024·5 min read
sharaththungathurthi.hashnode.devAws GlueHere are some common AWS Glue questions and answers that can help you understand the service better: 1. What is AWS Glue? Answer: AWS Glue is a fully managed ETL (Extract, Transform, Load) service that allows you to prepare and load data for analytic...Dec 18, 2024·6 min read
sharaththungathurthi.hashnode.devManaged vs External TablesIn an interview, questions about managed vs. external tables in PySpark are likely to focus on concepts, practical applications, and potential scenarios where one is preferable over the other. Here are some areas to prepare for: 1. Definition and Dif...Nov 14, 2024·3 min read
sharaththungathurthi.hashnode.devHow to Perform Efficient Data Transformations Using PySparkHere are some common interview questions and answers related to transformations in Spark: 1. What are narrow and wide transformations in Spark? Answer: Narrow transformations are transformations where each partition of the parent RDD is used to produ...Oct 19, 2024·15 min read