Who has the world’s largest Hadoop cluster?
I am very interested in knowing about big data analysis and Hadoop. During my imagination, a question was raised in my mind which company would have…
1 Answer · 1.6K Views · Answered ✓
Browse 35 Big Data Hadoop questions and answers from learners and industry experts. Find practical fixes, interview prep and step-by-step solutions - or ask your own.
I am very interested in knowing about big data analysis and Hadoop. During my imagination, a question was raised in my mind which company would have…
1 Answer · 1.6K Views · Answered ✓
I am assigned a task which is about analyzing a vast range of customer behavior data of an e-company. How can I design a relational database system…
2 Answers · 1.3K Views · Answered ✓
I had committed my change locally, but I am unable to push to origin master I am running the below-mentioned command:$ git remote add origin…
1 Answer · 1.5K Views · Answered ✓
a. To validate the set of defined use casesb. To identify areas of erroneous definition (CRUD).c. To validate the set of classesd. To validate the…
1 Answer · 1.7K Views · Answered ✓
I have installed and configured Hadoop on my Linux machine. I am trying to run a sample MR job. And, started the Hadoop via the command…
1 Answer · 2.2K Views · Answered ✓
I installed Hadoop on the server running CentOs. As I run start-dfs.shor stop-dfs.sh I got the following error :WARN util.NativeCodeLoader: Unable to…
1 Answer · 2.0K Views · Answered ✓
It analyzes customers' needs based on their proximity to a retail store.b. It focuses on understanding the behavior of a brand's target customers.c.…
1 Answer · 2.3K Views · Answered ✓
I am on a mac and am trying to install the Google Cloud SDK (including the gcloud command line utility) using this command in terminalcurl…
1 Answer · 3.7K Views · Answered ✓
I am new to Hadoop. I have some ideas about the other tools present in the Hadoop Ecosystem but I don't understand the purpose of using Zookeeper…
1 Answer · 1.9K Views · Answered ✓
What is the command to list the directories in HDFS as per timestamp? I tried hdfs dfs ls -l which provides the list of directories with their…
2 Answers · 5.8K Views · Answered ✓
I read about sequence file format in a few blogs. Since I am still new to hadoop I am not actually able to understand what is the application or…
1 Answer · 1.8K Views · Answered ✓
JS:var str = "SLA-UPsdfdsfdsfG-4HR-4ON"; var res = str.substr(-7, 3);Output: 4HRWhat is the alternative for Substr in apex which is starting from end…
1 Answer · 1.5K Views · Answered ✓
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Common Big Data Hadoop interview questions, answered
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