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 a Record Reader in hadoop?

957

What is version-id mismatch error in hadoop?

1055

how to share the metastore within multiple users?

918

What is a partitioner and how the user can control which key will go to which reducer?

939

Hive for Hadoop - Give some points?

1 2038

How do you define "block" in HDFS?

898

Where is the Mapper Output intermediate kay-value data stored ?

1354

How does Mappers run method works?

893

What are the components of Apache Pig platform?

747

What is Distributed Cache?

905

what is difference between pig and sql?

2606

What problem does Apache Pig solve?

801

if you run Hive as a server?

921

What problems have you faced when you are working on Hadoop code?

968

What is HDFS - Hadoop Distributed File System?

962

Un-Answered Questions { Big Data }

Why is spark used?

271

How to specify more than one path for storage in Hadoop?

506

what is gossip protocol?

What are the various InputFormats in Hadoop?

650

What are the main classes of Data Transfer API?

How many InputSplits will be made by hadoop framework?

492

Why would nosql be better than using a sql database? And how much better is it?

484

How Mapper is instantiated in a running job?

993

What is a difference between an input split and hdfs block?

What is pig properties?

549

Is spark a special attack?

289

What is the disadvantage of spark sql?

369

State the usage of 'filters', 'group' , 'orderBy', 'distinct' keywords in pig scripts?

661

What is the use of spark sql?

275

How is transformation on rdd different from action?

343

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