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 needs to be taken care while adding a Column?

107

how Cassandra writes data?

117

how Cassandra writes changed data into commitlog?

what is Cassandra- CQL collections?

105

what is Bloom Filter is used for in Cassandra?

115

when you can use Alter keyspace?

122

what is SStable consist of?

How to exit the vi editor?

732

Does the hdfs client decide the input split or namenode?

666

Which files are used by the startup and shutdown commands?

720

What is cloudera and why it is used?

797

What is a spill factor with respect to the ram?

865

Can we have multiple entries in the master files?

694

On which port does ssh work?

737

Do we need to give a password, even if the key is added in ssh?

727

Un-Answered Questions { Big Data }

What is the latest version of ambari that is available in the present market?

What are the features of spark rdd?

286

What do you mean by data center in Cassandra?

How to enable/configure the compression of map output data in hadoop?

766

In hbase what is column families?

174

How would you restart NameNode?

422

What is a bookie in bookkeeper?

What is the role of recordreader in hadoop mapreduce?

734

What is impala?

130

List out some common problems faced by data analyst?

450

Give examples of the SerDe classes which hive uses to Serialize and Deserialize data?

700

How Hadoop is cost-effective?

415

Is the following approach correct? Is the sqrt Of Sum Of Sq a valid reducer?

451

Use of list-tables command in hadoop sqoop?

Give the command to see the indexes on a table?

922

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