Hadoop Multiple Choice Questions – Part 7


Objective

Below is the question and corresponding are the choice, choose the correct option. Grab the opportunity to test your skills of Apache Hadoop. These Hadoop multiple choice questions will help you to revise the concepts of Apache Hadoop and will build up your confidence in Hadoop.

Top Apache Hadoop Multiple Choice questions and Answers

 

Best Hadoop Multiple Choice Questions

Q.1 The client reading the data from HDFS filesystem in Hadoop does which of the following?

For detailed description follow: Hadoop HDFS Architecture

Q.2 Which of the following feature overcomes this single point of failure?

For detailed description follow: HDFS NameNode High Availability

Q.3 In whih process duplicate task is created to improve the overall execution time?

For detailed description follow: Sepeculative execution in Hadoop

Q.4 Which of the following is used to adjust the size of distributed cache?

For detailed description follow: Hadoop- Distributed Cache

Q.5 Which of the following feature you will use submit jars,static files for MapReduce job during runtime?

For detailed description follow: Hadoop- Distributed Cache

Q.6 For reading/writing data to/from HDFS, clients first connect to-

For detailed description follow: HDFS Architecture

Q.7 Which of the following stores metadata?

Q.8 Which of the following is the true about metadata?

For detailed description follow: HDFS Architecture

Q.9 HDFS performs replication, although it results in data redundancy?

For detailed description follow: HDFS Introduction Tutorial

Q.10 Which command is used to format HDFS?

For detailed description follow: HDFS Commands

Q.11 What happen if number of reducer is 0 in Hadoop?

For detailed description follow: Map-Only job in Hadoop

Q.12 Suppose file content is- "on the top of the Tree" then, what is key and value?

For detailed description follow: MapReduce- Key-Value pair

Q.13 Which of the following is Built-In Counters in Hadoop?

For detailed description follow: MapReduce-Counters

Q.14 Which of the following OutputFormat is used for writing to relational databases and Hbase?

For detailed description follow: MapReduce-OutputFormat

Q.15 Which of the folowing is used to provide multiple input to Hadoop?

For detailed description follow: MapReduce- InputFormat

Q. 16 Which kind of keys(CONSTRAINTS) Hive can have?

For detailed description follow: Hive Introduction

Q.17 By default when a database is dropped in Hive-

For detailed description follow: Hive Introduction

Q.18 Which among the following is core components of Flume?

For detailed description follow: Flume Introduction Tutorial

Q.19 In Hbase a table can be-

For detailed description follow: Hbase Introduction Tutorial

Q.20 Which of the following will run pig in local mode ?

For detailed description follow: Pig Introduction Tutorial

If you have any questions, suggestions or contributions for these Hadoop multiple Choice Questions, I would be happy to answer them in the comments.

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