Hadoop engineer sollicitatievragen

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OpenX
Er werd een Hadoop Engineer gevraagd...6 november 2013

Decorator pattern

4 antwoorden

do you remember any other questions asked?

equal() vs hashcode() record reader vs input format

thanks , where hadoop Mapreduce code asked during coding round?

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Nisum

Mostly about Hadoop technologies HDFS, MapReduce, Hbase, Hive.

2 antwoorden

Answered almost all questions

Hello, Thank you for your interest in Nisum and taking the time to provide feedback. We take all input very seriously here at Nisum, and would like to take this opportunity to help clarify the situation you've referenced. As we discussed and was conveyed to you, Nisum (like many other firms looking for excellent talent) believes in offering the best offer to a candidate after a thorough technical and behavioral assessment. After our evaluation, we found that there was misalignment in expectations between parties. Your expectations seemed to be based on hearsay about working on the west coast. There was also an apparent mismatch between your current views as a contractor versus joining as a full time employee. Finally, we did not say that "you are eligible for less salary." A formal offer was never extended as we could not meet each other's expectations. We apologize if you believe that the interview process was not as you'd hoped. Again, thank you for your interest in Nisum Technologies! Wishing you the best! Nisum HR Minder

TetraSoft

Better dont ask

2 antwoorden

Prepare well for interview. Interviewer knows what they need . Better upgrade your skills. Minder

Interviewer should also know how to behave. His attitude towards interview candidates is regressive Minder

Centurysoft

I was not asked even a single proper technical question. It was more so like an hr round.

KOGENTiX

print department wise salary using mapreduce, hive, pig, spark. One question with different concepts.

1 antwoorden

in hive select salary from tablename order by dept in spark scala val sl=sqlContext.sql(select salary from tablename order by dept) Minder

Larsen & Toubro

Technical questions related to your technology

1 antwoorden

I have answer for most of them

Happiest Minds Technologies

4. given the http url,write the regex to get different parts of url like : protocol, server, path

1 antwoorden

provided the regex and parts but not sure why they rejected.

TIAA

Hive Static partition vs Dynamic partition

1 antwoorden

Insert input data files individually into a partition table is Static Partition, fast, can alter the partition, set hive.mapred.mode = strict Single insert to partition table is known as a dynamic partition, slow, can’t perform alter, don’t know how many columns Minder

TIAA

Sqoop - JDBC connection. How does Sqoop work

1 antwoorden

How does Flume work? Explain Flume config file

Experian

Java Based Questions, Explain OOPS Concepts, Interface, Given a CSV text file how would write code to display the Second column Values. Other than java, which programming language you know to write this programme.

1 antwoorden

The OOPS Concepts and Interface questions are pretty simple to answer. For the CSV file, a quick and dirty solution would be to use a file reader to read the file line by line, split on the comma and print out index 1 of the list resulting from the split. (index starts at 0) Easiest alternative to Java is python, which is pretty much exactly the same method. This is by no means the most efficient implementation Minder

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