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 }

Why is spark popular?

280

Explain a scenario where you will be using spark streaming.

1459

When should you use sequencefileinputformat?

672

Can Apache Kafka be used without Zookeeper?

1042

What is difference between memory channel and file channel in flume?

What are the modes in which Apache Hadoop run?

805

What is the purpose of dfsadmin tool?

1259

What is a Consumer Group?

621

How can a user get the information on the version of CQLSH?

What problem does Apache Pig solve?

811

Explain pigdump function?

615

What is different table structure available in the hive?

671

What is spooldir flume?

Why do we need apache spark?

275

What do sorting and shuffling do?

704

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