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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What happens if the block on Hadoop HDFS is corrupted?

What is a block in HDFS, why block size 64MB?

How NameNode tackle Datanode failures in HDFS?

How is indexing done in Hadoop HDFS?

How to perform the inter-cluster data copying work in HDFS?

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

Describe HDFS Federation?

What is active and passive NameNode in HDFS?

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Does HDFS allow a client to read a file which is already opened for writing in hadoop?

How data or file is read in Hadoop HDFS?

How HDFS helps NameNode in scaling in Hadoop?

What is Fault Tolerance in Hadoop HDFS?

How can one copy a file into HDFS with a different block size to that of existing block size configuration?

What is a Block Scanner in HDFS?

Differentiate HDFS & HBase?

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

Does hdfs enable a customer to peruse a record, which is already opened for writing?

Can we change the document present in hdfs?

Can you define a block and block scanner in hdfs?

What is a block?

What do you mean by metadata in HDFS?

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

What alternate way does HDFS provides to recover data in case a Namenode, without backup, fails and cannot be recovered?

Replication causes data redundancy then why is pursued in hdfs?

Can you explain about the indexing process in hdfs?

How would you import data from MYSQL into HDFS ?

How hdfs is different from traditional file systems?

How does hdfs get a good throughput?

How to remove safemode of namenode forcefully in HDFS?

How to access HDFS?

What is a difference between an input split and hdfs block?

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