Answer / Akash Negi

HDFS stores data on commodity hardware because it is cost-effective and scalable. Despite a higher chance of failures, Hadoop's architecture relies on data replication and fault tolerance mechanisms to ensure data availability and consistency.

Can multiple clients write into an HDFS file concurrently in hadoop?

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List the files associated with metadata in hdfs?

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If the source data gets updated every now and then, how will you synchronize the data in hdfs that is imported by sqoop?

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Which one is the master node in HDFS? Can it be commodity hardware?

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Explain hdfs?

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

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What are file permissions in HDFS and how HDFS check permissions for files or directory?

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How to change the replication factor of data which is already stored in HDFS?

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How data or file is read in HDFS?

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Data node block size in HDFS, why 64MB?

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

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Explain HDFS “Write once Read many” pattern?

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