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07: Q62 – Q70 HDFS blocks Vs. splits & Spark partitions Interview Questions & Answers

Q62. Can you explain the difference between HDFS blocks and input splits? A62. A block is a physical representation of … … Read more ›...

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11: Q88 – Q91 Read-Write Vs Append-Only File Systems

Q88. How will you modify a portion of an HDFS file? A88. HDFS is an “append-only” file system. The … … Read more ›...

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12: Q92 – Q97 Hadoop file formats and how to choose

Q92. What are the criteria for choosing storage file formats in Hadoop? A92. Choosing the wrong file formats can significantly increase … … Read more ›...

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18: Q121 – Q124 Choosing between HDFS & AWS S3 for BigData projects interview Q&As

More and more organisations are adopting the policy of “Cloud first architecture” where Cloud based storages like AWS S3 … … Read more ›...

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More HDFS & NameNode interview Q&As

Q1. What are the different ways to access files or data stored in HDFS? A1. You can access files or data … … Read more ›...

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