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

Big Data Interview Questions

Questions Answers Views Company eMail

Is hive suitable to be used for oltp systems? Why?

795

What types of costs are associated with creating the index on hive tables?

1016

Give some points of hive for hadoop ?

721

Write a query to insert a new column(new_col int) into a hiev table (htab) at a position before an existing column (x_col)

788

What is a metastore in hive?

699

What is the importance of driver in hive?

714

How can hive avoid mapreduce?

692

What are hive operators and its types?

751

when to choose “internal table” and “external table” in hive?

675

How do you specify the table creator name when creating a table in hive?

690

what is partitions in hive?

684

What do you mean by schema on read?

714

what does the shell commands “Capture” and “Consistency” determines?

111

how Cassandra delete Data?

114

what is Memtable in Cassandra?

109

Un-Answered Questions { Big Data }

Different Running Modes of Apache Spark

310

Explain accumulators in apache spark.

2074

What is a udf?

448

Is it mandatory to set input and output type/format in MapReduce?

730

What are partitions in cassandra?

Mention the difference between hbase and relational database?

162

Explain Thrift & Protocol Buffers Vs. Avro?

Why aggregation cannot be done in Mapper?

560

Explain a scenario where you will be using spark streaming.

1458

What do you understand by composite type?

How can you use consumer api?

522

Difference between hbase and rdbms?

176

How mahout used with python ?

161

Write command to copy a file from HDFS to linux(local).

Clarify what is shuffling in map reduce?

633

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