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 }

Does Hive support record level Insert, delete or update?

742

Explain the wordcount implementation via hadoop framework ?

767

Explain why do we need hadoop?

719

What is Sqoop Validation?

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

826

Can you explain sqoop metastore?

What is CQLSH in Cassandra?

100

What is setmaster in spark?

329

What is the use of flatmap in spark?

302

What is Directed Acyclic Graph in Apache Spark?

428

List of the some best tools that can be useful for data-analysis?

483

Why Avro?

What are the identity mapper and reducer in MapReduce?

846

What is the use of coordinator node in read?

Do we need scala for spark?

318

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