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 CTAS Table in Hive?

739

How do you write your own custom SerDe ?

739

How will you read and write HDFS files in Hive?

689

Explain ALTER Table statement in Hive?

709

LOWER or LCASE function in Hive with example?

707

What is the functionality of Query Processor in Apached Hive ?

708

Explain Data Type Conversion in Hive?

720

Explain SHOW and DESCRIBE Commands in Hive?

747

What are the views in Hive?

665

What are the different Primitive Data Types available in Hive?

694

Are there any problems which can only be solved by MapReduce and cannot be solved by PIG? In which kind of scenarios MR jobs will be more useful than PIG?

775

When to choose "Internal Table" in Hive?

720

What are the different parts of Hive ?

764

What are the types of tables in Hive?

737

Does Hive support record level Insert, delete or update?

685

Un-Answered Questions { Big Data }

What is anti-entropy?

What are the hadoop configuration files at present?

476

Explain InputSplit in Hadoop MapReduce?

677

What are the possible Job roles?

In Hive, how can you enable buckets?

740

What is the maximum size of string data type supported by Hive?

783

Which components are used for stream flow of data?

577

What are the 2 types of table in hive?

683

What are best features of Apache Avro?

Explain the use of File system API in Apache Spark

286

What is the difference between Gen1 and Gen2 Hadoop with regards to the Namenode?

1172

Give the difference between Drop and Truncate in CQLSH?

Define composite type in Cassandra?

How does lazy evaluation work in spark?

288

What is gossip protocol in Cassandra?

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