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 are impala architecture components?

State some impala hadoop benefits?

How apache impala works with cdh?

What are the names of daemons in impala?

How to call impala built-in functions?

What are the best features of impala?

Compare hive, hbase, and impala?

What are impala built-in functions?

Does impala support generic jdbc?

How to control access to data in impala?

Mention the best features of Apache Sqoop?

What is Sqoop?

What is the Use of Sqoop?

How many default mappers in sqoop ?

Write a quert to import a file in sqoop?

Un-Answered Questions { Big Data }

Explain the run-time architecture of Spark?

314

Which among the two is preferable for the project- Hadoop MapReduce or Apache Spark?

653

How to handle record boundaries in Text files or Sequence files in MapReduce InputSplits?

740

What do you mean by “data centre” in cassandra?

Give examples of some companies that are using Hadoop structure?

485

Explain the uses of Map Reduce in Pig?

587

What are the parameters of mappers and reducers?

539

What are the benefits of apache tajo?

How to Alter Hive Database?

784

How NameNode tackle Datanode failures in Hadoop?

520

What is the meaning of the term "non-DFS used" in Hadoop web-console?

1363

What is the key- value pair in MapReduce?

853

How job tracker schedules an assignment?

469

How to fetch particular columns in pig?

639

Explain fold() operation in spark?

323

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