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?

728

How to load data into table created in hive ?

747

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

733

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

729

What are the 2 types of table in hive?

730

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

818

what is (HS2) HiveServer2?

731

Explain how cassandra delete data?

102

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?

107

What are the Difference between MongoDB and Cassandra?

Un-Answered Questions { Big Data }

What are the key elements in ZooKeeper Architecture?

Why is spark good?

303

How does impala compare to hive and pig?

What is the difference between Primary, Partition and Cassandra ?

Why do I have to use refresh and invalidate metadata, what do they do?

How can an application connect to Hive run as a server?

1217

What are the benefits of Spark lazy evaluation?

338

What daemons run on master nodes?

523

Can we change the data type of a column in a hive table?

741

What mode(s) can hadoop code be run in?

498

What is the usefulness of the options file in sqoop?

What is the role of the secondary namenode?

487

Why HDFS stores data using commodity hardware despite the higher chance of failures?

What do you understand by compaction?

160

What do you understand by composite type?

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