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

Big Data Interview Questions

Questions Answers Views Company eMail

State syntax of the command that is used to drop a partition?

Explain HCatInputFormat?

What are the main classes of Data Transfer API?

Explain Creating an Index?

What is the no. Of threads created by impala?

What is impala’s aggregation strategy?

What does impala do for fast access?

How is impala metadata managed?

What size is recommended for each node?

214

What impala use for authentication?

Can impala do user-defined functions (udfs)?

What is used to store data generally?

State use cases of impala?

How do I load a big csv file into a partitioned table?

How does impala process join queries for large tables?

Un-Answered Questions { Big Data }

Define big data analytics?

517

What are the most common OutputFormat in Hadoop?

549

What is the difference between Cassandra, Pig and Hive?

987

How to overwrite an existing output file/dir during execution of Hadoop MapReduce jobs?

624

Mention what are the key components of hbase?

177

what is pig?

836

What is illustrate used for in apache pig?

594

Can you explain textinformat?

497

Define fault tolerance?

654

What is DataFrames?

367

What is hfile ?

291

What relational operators can we use that are related to combining and splitting in Pig language?

553

Use of list-tables command in hadoop sqoop?

What are the stable versions of Hadoop?

1017

What are the three components of Cassandra write?

116

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