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 }

Who divides the file into Block while storing inside hdfs in hadoop?

Explain hdfs?

What are the main features of hdfssite.xml?

How is hdfs block size different from traditional file system block size?

How to read file in HDFS?

What is the procedure to create users in HDFS and how to allocate Quota to them?

How to split single hdfs block into partitions rdd?

What is the optimal block size in HDFS?

Define hadoop archives?

Define data integrity? How does hdfs ensure data integrity of data blocks stored in hdfs?

What are the difference between of the “HDFS Block” and “Input Split”?

Explain what is heartbeat in hdfs?

What is the difference between Input Split and an HDFS Block?

Why does hive not store metadata information in hdfs?

How one can change Replication factor when Data is already stored in HDFS

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