Apache HDFS Hadoop Distributed File System Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apache HDFS Hadoop Distributed File System Interview Questions

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Write command to copy a file from HDFS to linux(local).

How to create directory in HDFS?

How to Delete directory from HDFS?

What are the main features of hdfssite.xml?

Write the command to copy a file from linux to hdfs?

How to copy file from HDFS to local?

How much Metadata will be created on NameNode in Hadoop?

What do you mean by metadata in Hadoop?

How to Delete directory and files recursively from HDFS?

How does HDFS Index Data blocks? Explain.

How to access HDFS?

Explain the process that overwrites the replication factors in HDFS?

Difference Between Hadoop and HDFS?

How would you import data from MYSQL into HDFS ?

Define HDFS and talk about their respective components?

Un-Answered Questions { Apache HDFS Hadoop Distributed File System }

What do you mean by metadata in Hadoop?

What are problems with small files and hdfs?

What is the problem in having lots of small files in hdfs?

List the various HDFS daemons in HDFS cluster?

What is secondary namenode? Is it a substitute or back up node for the namenode?

How to create directory in HDFS?

What is active and passive NameNode in HDFS?

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How will you perform the inter cluster data copying work in hdfs?

Explain how indexing is done in hdfs?

What is a rack awareness algorithm and why is it used in hadoop?

How much Metadata will be created on NameNode in Hadoop?

Replication causes data redundancy then why is is pursued in HDFS?

Is namenode also a commodity?

What is hdfs block size?

What are the main properties of hdfs-site.xml file?

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