Top 100+ questions in Hadoop

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Q: Lower the opacity value, the more opaque it is.

asked Jan 17 in Hadoop by SakshiSharma

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Q: Which component enforces a common set of policies across multiple data access paths in Hadoop?

asked Jan 17 in Hadoop by SakshiSharma

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Q: Which is the default HTTP Port for Apache NiFi?

asked Jan 7 in Hadoop by SakshiSharma

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Q: Which method is used to instantiate the Push notification system?

asked Dec 6, 2020 in Hadoop by rajeshsharma

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Q: Which of the following helps to enable pig scripts?

asked Dec 6, 2020 in Hadoop by rajeshsharma

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Q: How many times a session can run?

asked Dec 6, 2020 in Hadoop by rajeshsharma

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Q: MapReduce: Simplified Data Processing on Large Clusters Who are the authors of this Paper?

asked Dec 6, 2020 in Hadoop by rajeshsharma

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Q: Which of the operator is used to used to show values to keys used in Pig ?

asked Dec 6, 2020 in Hadoop by rajeshsharma

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Q: What are the different components of a Hive architecture?

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: What happens if requested memory or CPU cores go beyond the size of container allocation?

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: In a cluster of 10 DataNodes, each having 16 GB RAM and 10 cores, what would be the total processing capacity of the cluster?

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: What happens if a ResourceManager fails while executing an application in a high availability cluster?

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: What are the different schedulers available in YARN?

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: Can we have more than one ResourceManager in a YARN-based cluster?

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: Write the YARN commands to check the status of an application and kill an application.

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: Which of the following has replaced JobTracker from MapReduce v1?

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: Explain how YARN allocates resources to an application with the help of its architecture.

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: What benefits did YARN bring in Hadoop 2.0 and how did it solve the issues of MapReduce v1?

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: Can we write the output of MapReduce in different formats?

asked Dec 3, 2020 in Hadoop by sharadyadav1986

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Q: What happens when a node running a map task fails before sending the output to the reducer?

asked Nov 24, 2020 in Hadoop by rahuljain1

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Q: How can you set the mappers and reducers for a MapReduce job?

asked Nov 24, 2020 in Hadoop by rahuljain1

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Q: Explain the process of spilling in MapReduce.

asked Nov 24, 2020 in Hadoop by rahuljain1

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Q: What is the role of the OutputCommitter class in a MapReduce job?

asked Nov 24, 2020 in Hadoop by rahuljain1

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Q: What do you mean by map-side join and reduce-side join in MapReduce?

asked Nov 24, 2020 in Hadoop by rahuljain1

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Q: How is identity mapper different from chain mapper?

asked Nov 24, 2020 in Hadoop by rahuljain1

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Q: What is speculative execution in Hadoop?

asked Nov 24, 2020 in Hadoop by rahuljain1

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Q: Hadoop Interview Questions and Answer, HDFS and MapReduce Questions

asked Nov 8, 2020 in Hadoop by rahuljain1

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Q: How to submit extra files(jars, static files) for MapReduce job during runtime?

asked Nov 8, 2020 in Hadoop by rahuljain1

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Q: What is a Speculative Execution in Hadoop MapReduce?

asked Nov 8, 2020 in Hadoop by rahuljain1

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Q: What is the fundamental difference between a MapReduce InputSplit and HDFS block?

asked Nov 8, 2020 in Hadoop by rahuljain1

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