Questions on mappers and reducers and hadoop
Ingeniero De Big Data Interview Questions
1,228 ingeniero de big data interview questions shared by candidates
class male female 1 2 1 2 0 2 3 2 0 class gender 1 m 1 f 1 m 2 f 2 f 3 m 3 m Using pyspark take the data from table1 and dump into another table in the format of table2 as given . Also please do vice-versa Question 2: dept salary 1 10 1 20 2 40 2 50 2 90 2 80 1 100 1 70 using pyspark sort the datasets as per salary and print out third highest row for each dept Question 3: How you the offset works in KAFKA , also write the syntax for it
what are UDF in hive and pig
self join
Q1 What is range in Python ? Q2 What are iterators in Python ? Q3 Have you ever used enumerators ? Q4 Some very easy python coding questions. Q5 Coalesce vs repartition ? Simple spark questions
molto generiche colloquio di tipo conoscitivo per via telefonica
What are your views on JAVA programming language?
Basic MapReduce and Java questions. Covered other components in Hadoop eco system (Hive, Sqoop and Oozie). Few questions Spark performance and architecture.
Question on Joins, Optimizations based on Pyspark
spark basic questions, core java sql null record and duplicate row record join table question asked
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