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?

734

Say what the object inspector functionality is in hive?

803

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

948

Clarify how hive de-serialize and serialize the information?

681

What is the utilization of hcatalog?

720

What are the various uses of explode hive?

721

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

744

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

627

What in hive made out of?

744

Specify the different types of tables accessible in hive?

840

Clarify about the smb join in hive?

711

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 is pagerank in graphx?

291

What does apache spark do?

338

Which one is better hadoop or spark?

324

What are the different types of primary key?

What is the bag?

581

How to managed create a table in hive ?

763

What is the default spark executor memory?

292

When do you have to avoid secondary indexes?

Explain the need for MapReduce while programming in Apache Pig?

811

What is aggregatebykey spark?

291

What is BloomMapFile used for?

704

For using hadoop list the network requirements?

512

Mention what is the maximum size of the message does kafka server can receive?

571

What is driver and executor in spark?

324

what is meaning Replication factor?

991

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