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

Big Data Interview Questions

Questions Answers Views Company eMail

Explain about tablespace?

Explain the tajo architecture?

Mention some basic tajo shell commands?

How to create index statement in apache tajo?

What are the benefits of apache tajo?

What is the advantage of hadoop over java serialization?

What are the disadvantages of hadoop serialization?

Who is intended audience to learn avro?

What is the maximum size of string data type supported by hive? Mention the hive support binary formats.

710

What is available mechanism for connecting from applications, when we run hive as a server?

824

If you run a select * query in hive, why does it not run mapreduce?

795

Can we run unix shell commands from hive? Can hive queries be executed from script files? How? Give an example.

853

What is the precedence order of hive configuration?

991

Why hive does not store metadata information in hdfs?

1008

Whenever we run hive query, new metastore_db is created. Why?

740

Un-Answered Questions { Big Data }

Explain the Single point of Failure in Hadoop?

526

What is the replica placement Strategy in Cassandra ?

What are the different Relational Operators available in pig language?

772

What is the process to change the files at arbitrary locations in HDFS?

1457

what is storage and compute nodes?

796

What is Input Split in hadoop?

1053

What is map side join?

317

name few other popular column oriented databases like hbase.

208

What is the difference between rdd and dataframe in spark?

367

Is it possible to run Apache Spark without Hadoop?

295

Is it possible to change the default location of Managed Tables in Hive, if so how?

762

How to format the HDFS? How frequently it will be done?

What is the purpose of Sqoop List Tables?

Define Spark Streaming.

429

what is "map" and what is "reducer" in Hadoop?

694

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