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Big data hadoop consultant Interview Questions

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Big Data Hadoop Consultant interview questions shared by candidates

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TIAA
Big Data/Hadoop Developer was asked...15 June 2018

Hive Static partition vs Dynamic partition

1 Answers

Insert input data files individually into a partition table is Static Partition, fast, can alter the partition, set hive.mapred.mode = strict Single insert to partition table is known as a dynamic partition, slow, can’t perform alter, don’t know how many columns Less

TIAA

Sqoop - JDBC connection. How does Sqoop work

1 Answers

How does Flume work? Explain Flume config file

Cognizant Technology Solutions

Basic Basic questions only they asked

1 Answers

give the answer with confidence

TIAA

Hive INSERT OVERWRITE vs INSERT INTO

1 Answers

INSERT OVERWRITE will overwrite any existing data in the table or partition and INSERT INTO will append to the table or partition keeping the existing data. Less

TIAA

REST API actions

1 Answers

HTTP GET - to retrieve resource representation/information only HTTP POST - to create new subordinate resources HTTP PUT - to update existing resource HTTP DELETE - to delete resources HTTP PATCH - to make partial update on a resource Less

TIAA

Write MapReduce example program. WordCount

1 Answers

Hive External Table vs Internal Table. Write Queries to create tables

TIAA

Describe Hadoop Architecture

1 Answers

Describe Yarn Architecture

TIAA

Hive Load vs Insert

1 Answers

Load Hive does not do any transformation while loading data into tables. Load operations are currently pure copy/move operations that move datafiles into locations corresponding to Hive tables. Insert Query Results can be inserted into tables by using the insert clause based on some condition Less

Fractal

asked very few questions. only about projects.interviewer was in hurry .has taken interview for 6-7 min only .

1 Answers

told about my project experince.But guy was adamant on something about my leaving other company.As i already told he has already made his mind by just reading resume only Less

Shree Partners

Discussed about the projects.

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