Q62. Can you explain the difference between HDFS blocks and input splits? A62. A block is a physical representation of data, and a Split is a logical division of your…
…Q62. Can you explain the difference between HDFS blocks and input splits? A62. A block is a physical representation of data, and a Split is a logical division of your…
Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQs
Q88. How will you modify a portion of an HDFS file? A88. HDFS is an “append-only” file system. The most common use case of Hadoop data ingestion is to append…
Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQs
Q92. What are the criteria for choosing storage file formats in Hadoop? A92. Choosing the wrong file formats can significantly increase the query times and storage spaces. Choosing a format…
Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQs
More and more organisations are adopting the policy of “Cloud first architecture” where Cloud based storages like AWS S3 plays a major role. A data lake is a storage repository…
Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQs
Q1. What are the different ways to access files or data stored in HDFS? A1. You can access files or data stored in HDFS in many different ways. HDFS Command-Line…
Login Register 100+ Free Java interview FAQs 100+ Free Big Data interview FAQs