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Q: How to know Hive and Hadoop versions from command prompt?
    Is there any way or any command which I can use in command prompt to know the version of Hadoop? Also, ... ,Core Questions, Core Hadoop MCQ,core interview questions for experienced...
asked Oct 31, 2021 in Education by JackTerrance
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Q: Technically what is the difference between s3n, s3a and s3?
    Can someone explain the basic difference that distinguishes s3n, s3a and s3 in Hadoop? Technically how are ... Questions, Core Hadoop MCQ,core interview questions for experienced...
asked Oct 31, 2021 in Education by JackTerrance
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Q: Difference between Hive internal tables and external tables?
    Can someone tell me what is metadata? What is the difference between Internal tables and external tables in ... Questions, Core Hadoop MCQ,core interview questions for experienced...
asked Oct 31, 2021 in Education by JackTerrance
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Q: How to copy file from HDFS to the local file system
    I tried moving the files using WinSCP, but it didn't help. So, I wanna know how can I copy files ... ),Core Questions, Core Hadoop MCQ,core interview questions for experienced...
asked Oct 31, 2021 in Education by JackTerrance
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Q: What is the difference between partitioning and bucketing a table in Hive ?
    In the hive, partitioning and bucketing a table, both are done on a column. But how exactly are they ... ,Core Questions, Core Hadoop MCQ,core interview questions for experienced...
asked Oct 31, 2021 in Education by JackTerrance
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Q: Chaining multiple MapReduce jobs in Hadoop
    Hi, I am using MapReduce and there are so many steps in it. I want the value of the last reduced step ... ),Core Questions, Core Hadoop MCQ,core interview questions for experienced...
asked Oct 31, 2021 in Education by JackTerrance
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Q: R - list to data frame
    Can someone please tell me a quick way to convert a nested list of data whose length is 100 and each item is a list of ... 100 rows and 10 columns? I am attaching a sample data: 5...
asked Oct 31, 2021 in Education by JackTerrance
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Q: Test if a vector contains a given element
    How can I check if a given value is contained in a vector? Select the correct answer from above options ... Core Questions, Core Hadoop MCQ,core interview questions for experienced...
asked Oct 31, 2021 in Education by JackTerrance
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Q: The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or dataframe
    There are two different methods for accessing the element of a list or data frame- [ ] and [[ ]] , ... ),Core Questions, Core Hadoop MCQ,core interview questions for experienced...
asked Oct 31, 2021 in Education by JackTerrance
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Q: How to unload a package without restarting R
    How can I unload a package without restarting R? I tried library but it doesn't show any options that ... Questions, Core Hadoop MCQ,core Hadoop interview questions for experienced...
asked Oct 30, 2021 in Education by JackTerrance
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