Big Data Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Big Data Interview Questions

Questions Answers Views Company eMail

What is the maximum number of rows in a table?

Describe impala shell (impala-shell command)?

Can any impala query also be executed in hive?

State some advantages of impala?

Does impala use caching?

How are joins performed in impala?

103

What are distinct operators in impala?

What is troubleshooting for impala?

Can impala be used for complex event processing?

169

How do I configure hadoop high availability (ha) for impala?

How do I know how many impala nodes are in my cluster?

160

What are the differences between relational databases and impala?

On which hosts does impala run?

State some disadvantages of impala?

What is impala data types?

Un-Answered Questions { Big Data }

How client application interacts with the NameNode?

957

What does the command mapred.job.tracker do?

777

What is the difference between Pig and MapReduce?

609

Explain the input type/format in mapreduce by default?

579

How is recovery achieved in Ambari?

How can we launch Spark application on YARN?

421

What is the difference between apache mahout and spark mllib ?

Explain future growth of Apache Ambari?

Name several advantages of Apache Ambari?

What are channel selectors?

1029

Which database is best for big data?

526

Different running modes for running Pig?

890

Mention what does the shell commands “capture” and “consistency” determines?

What is the difference between Hiveserver1 and Hiveserver2?

802

Give some important features of SPM?

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