Interview Questions in Hadoop Experienced

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on the off chance that you take after these inquiry you without a doubt break the meeting I wager on it. Kindly make it clear comprehend the inquiry and give or set up your own particular responses for this.I wanna share all these ongoing inquiry question which I am confronting day by day.

1)      Explain about your architecture?

2)      What are the challenges did you face at least 3 ?

3)      What are the main storm cluster components?

4)      What happens if nimbus node dead?

5)      How to do versioning in Cassandra?

6)      What is kafka and difference between kafka and flume?

7)      What is the signature of mapper ?

8)      Map reduce phases and importance?

9)      How to give the own input to the mapper directly if main method defined?

10)   What are the demons in Hadoop cluster?

11)   Difference between hadoop1 and hadoop2?

12)   If you migrated hadoop2 did you see any differences?

13)   What are the versions are you using in your project?

14)   What is the format of the data?

15)   What is the data size your handling daily?

16)   How many events you fire in a second?

17)   What is the rate yourself while building same kind of cluster?

18)   How to make custom input to your mapper?

19)   How many mapper and reducer will going to run if particular size of data?

20)   How to run command line mapper program syntax?

21)   Did you work on oozie in your current project?

22)   Did you use splunk and what is your role in splunk?

23)   What is the difference between set and list?

24)   Struts flow?

25)   Difference between hash code and equals what happens if you override ?

26)   Difference between compare and comparable interfaces?

27)   What is custom UDF and what are the UDFS did you written?

28)   How to use the udf in your projects?

29)   Which version of java are you using currently?

30)   Did you involve any data conversion like .csv or json format?

31)   What are the limitations of hive?

32)   If I have 1000 records how to make insert/delete using Sqoop?