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

Big Data Interview Questions

Questions Answers Views Company eMail

Give the sqoop command to see the content of the job named myjob?

How can you see the list of stored jobs in sqoop metastore?

What are the basic commands in Apache Sqoop and its uses?

How can you avoid importing tables one-by-one when importing a large number of tables from a database?

What is Sqoop Validation?

What is Sqoop Job?

What is the purpose of Sqoop List Tables?

Is it possible to add a parameter while running a saved job?

What is a disadvantage of using –direct parameter for faster data load by sqoop?

How will you update the rows that are already exported?

Difference Between Apache Sqoop vs Flume?

What is the default extension of the files produced from a sqoop import using the –compress parameter?

Where can the metastore database be hosted?

Which database the sqoop metastore runs on?

What are Watches in ZooKeeper?

Un-Answered Questions { Big Data }

What main configuration parameters are specified in mapreduce?

675

Name the languages which are supported by apache spark and which one is most popular?

278

Define column families?

171

Can you explain the core methods of a reducer?

509

How does job tracker schedule a job for the task tracker?

454

How to configure the number of the Combiner in MapReduce?

624

What is a partition in spark?

367

Does cassandra support acid tractions?

What is a task tracker?

How many ways can you create rdd in spark?

331

Why do we use Hadoop?

925

What is the non dfs used?

552

how can you check whether Namenode is working beside using the jps command?

663

What is throughput in Hadoop?

534

What is Cassandra Database Software ?

166

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