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

Apache Hadoop (394)
MapReduce (354)
Apache Hive (345)
Apache Pig (225)

Apache Ambari (93)
Apache HCatalog (34)
Apache HDFS Hadoop Distributed File System (214)
Apache Kafka (189)

Hadoop Interview Questions

Questions Answers Views Company eMail

What are the key segments of hive architecture?

673

Say what the object inspector functionality is in hive?

752

What is the major difference between local and remote meta-store?

901

Clarify how hive de-serialize and serialize the information?

642

What is the utilization of hcatalog?

686

What are the various uses of explode hive?

678

Say when to pick “inward table” and “outside table” in hive?

703

What do hive variable means? How can we utilize it?

597

What in hive made out of?

686

Specify the different types of tables accessible in hive?

796

Clarify about the smb join in hive?

657

What is the throughput? How does hdfs give great throughput?

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

What do you mean by block scanner in hdfs?

What do you mean by meta information in hdfs? List the documents related to metadata.

Un-Answered Questions { Hadoop }

What are the applications of Apache ZooKeeper?

Explain the different logging levels in cassandra.

What is the biggest shortcoming of Spark?

316

What is Apache Spark and what are the benefits of Spark over MapReduce?

278

Define a daemon?

667

In Map Reduce why map write output to Local Disk instead of HDFS?

902

What is sink processors?

What is spark deploy mode?

311

Explain Usage of Hive?

689

Explain the filter transformation?

309

What exactly is spark?

272

Can you join multiple fields in apache pig scripts?

581

Which all languages Apache Spark supports?

345

Is Hive useful when making data warehouse applications?

736

What is a scarce system resource?

652

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