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 ODBC and JDBC connectivity in Hive?

675

How to load data into table created in hive ?

695

Is it possible to create cartesian join between 2 tables, using hive?

681

Can we run unix shell commands from hive? Give example?

675

What are the 2 types of table in hive?

683

what does /*streamtable(table_name)*/ do?

777

what is (HS2) HiveServer2?

677

Explain how cassandra delete data?

Mention what needs to be taken care while adding a column?

Mention when you can use alter keyspace?

Define memtable?

Explain how cassandra writes data?

Explain what is memtable in cassandra?

Explain cap theorem?

103

What are the Difference between MongoDB and Cassandra?

Un-Answered Questions { Big Data }

Who divides the file into Block while storing inside hdfs in hadoop?

Is kafka an etl tool?

462

How Sqoop can be used in a Java program?

Define sparkcontext in apache spark?

313

Can you explain data versioning?

172

Explain use cases where SequenceFile class can be a good fit?

941

What is the ZooKeeper ensemble?

Give some points of hive for hadoop ?

722

What is difference between regular file system and HDFS?

1056

What is dataproc cluster?

300

What is flatmap?

312

How do I start a spark master?

287

What are watches?

1033

Are there any special requirements for namenode?

425

Characterize data integrity? How does hdfs ensure information integrity of data blocks squares kept in hdfs?

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