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.

664

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

769

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

743

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

800

What is the precedence order of hive configuration?

932

Why hive does not store metadata information in hdfs?

939

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

684

Un-Answered Questions { Big Data }

Name the management tools in Cassandra?

What is spark reducebykey?

268

What language is apache kafka written in?

533

What is the problem in having lots of small files in hdfs?

what is partitions in hive?

684

Why rack awareness algorithm is used in hadoop?

What is flume agent?

Define yum?

What is Apache Spark? What is the reason behind the evolution of this framework?

278

name few other popular column oriented databases like hbase.

203

Mention how hadoop is different from other data processing tools?

408

What is the difference between TextInputFormat and KeyValueInputFormat class?

498

Can we write map reduce program in other than java programming language. How?

496

What is the concept of SuperColumn in Cassandra?

Explain the process of spilling in MapReduce?

597

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