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 count_star?

495

Explain pigdump function?

567

What is kerberos secured cluster in apache pig?

646

How can you debug a pig script?

558

What is the relationship between hdfs, hbase, pig, hive and azkaban?

479

What is the use of binstorage?

517

What are complex data types in pig?

543

Explain textloader function?

599

What is a bag in apache pig?

510

Explain plucktuple?

527

What is a ledger in bookkeeper?

What are the different zkclientbindings?

What are the design goals of zookeeper?

What are znodes?

What are nodes and ephemeral nodes?

Un-Answered Questions { Big Data }

What happens if one hadoop client renames a file or a directory containing this file while another client is still writing into it?

418

Explain what does the conf.setmapper class do?

569

What is the difference between External and Internal Table in Hive?

671

Mention what are the main configuration parameters that user need to specify to run mapreduce job?

687

What are the Difference between MongoDB and Cassandra?

what do you mean by the worker node?

280

What is the design architecture of Cassandra?

What is number of executors in spark?

281

What is difference between split and block in hadoop?

1345

how can you debug Hadoop code?

785

What do you mean by ss table and explain how it is different from the other original tables?

What is a Block Scanner in HDFS?

Give the differences between the different types of primary keys in cassandra?

What is Distributed Cache in Hadoop?

412

What is a secondary namenode?

576

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