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50 PySpark Interview Questions and Answers For 2023

ProjectPro

PySpark runs a completely compatible Python instance on the Spark driver (where the task was launched) while maintaining access to the Scala-based Spark cluster access. Their team uses Python's unittest package and develops a task for each entity type to keep things simple and manageable (e.g., sports activities). count())) df2.show(truncate=False)

Hadoop 52
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100+ Big Data Interview Questions and Answers 2023

ProjectPro

Every map/reduce action carried out by the Hadoop framework on the data nodes has access to cached files. As a result, the data files in the task assigned can access the cache file as a local file. Why is HDFS only suitable for large data sets and not the correct tool for many small files? No reliability exists.