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

Big Data Interview Questions

Questions Answers Views Company eMail

Can we use windows for hadoop?

477

What are the hadoop configuration files at present?

476

Can we create a hadoop cluster from scratch?

436

What happens if you get a ‘connection refused java exception’ when you type hadoop fsck /?

454

In which directory hadoop is installed?

406

Does hadoop follows the unix pattern?

427

What is the hadoop-core configuration?

463

What is bucketing ?

683

Can we load data into a view?

701

Difference between hive and impala?

727

What are the types of hive ddl commands?

770

How can you stop a partition form being queried?

765

What is the default location where hive stores table data?

690

What are types of hive built-in functions?

742

Why do we need hive?

723

Un-Answered Questions { Big Data }

What is spark vs hadoop?

278

Name job control options specified by mapreduce.

706

What is parallelize in spark?

285

What are the common hadoop PIG interview questions, that you have been asked in a Hadoop Job Interview?

570

How to write a Custom Key Class?

939

Mention what is the best way to copy files between hdfs clusters?

Define streaming?

655

Mention Hive default read and write classes?

752

What is the difference between local and remote metastore?

1108

Define data integrity? How does hdfs ensure data integrity of data blocks stored in hdfs?

How is spark sql different from hql and sql?

271

Explain what happens when hadoop spawned 50 tasks for a job and one of the task failed?

439

Where sorting is done on mapper node or reducer node in MapReduce?

673

Can you tell us how many daemon processes run on a hadoop system?

593

Is spark good for machine learning?

306

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