Big Data Hadoop Quiz Questions and Answers – Part 1 12


Objective

Through this Big Data Hadoop quiz, you will be able to revise your Hadoop concepts and check your Big Data knowledge to provide you confidence while appearing for Hadoop interviews to land your dream Big Data jobs in India and abroad. You will also learn the Big data concepts in depth through this quiz of Hadoop tutorial.

So before we start the quiz, let us revise our Big Data Concepts and key Hadoop features due to which Big Data Hadoop has captured IT market so fastly with various Hadoop roles and has tremendously increased Hadoop jobs and salary.

Big Data Hadoop Quiz Questions and Answers for Hadoop Interview Preparation
Big Data Hadoop Quiz Questions and Answers

Let us start playing Big data quiz to deep dive into the technology.

Q.1 Which of the following are true about Hadoop?

For detailed description follow: Big data Hadoop Tutorial

Q.2 Hadoop can be deployed on Commodity Hardware?

For detailed description follow: Big data Hadoop Terminologies

Q.3 Which of the following are false about Hadoop?

For detailed description follow: Big data Hadoop Tutorial

Q.4 What is a Metadata in Hadoop?

For detailed description follow: Big data Hadoop Tutorial

Q.5 Which of the following are false about the namenode?

For detailed description follow: Big data hadoop Terminologies

Q.6 What is a Daemon?

For detailed description follow: Big data Hadoop Terminologies

Q.7 Which of the following is true about Hadoop?

For detailed description follow: Big data Hadoop Tutorial

Q.8 All the slaves in the Hadoop cluster should be of same configuration?

For detailed description follow: Big data Hadoop Tutorial

Q.9 Choose the correct statement?

For detailed description follow: Big data Hadoop Tutorial

Q.10 Failure of slave-nodes or tasks is recovered automatically by the framework?

For detailed description follow: Big data hadoop features

Q.11 Which of the following is the core component of HDFS?

For detailed description follow: HDFS Introduction Tutorial

Q.12 Which statement is true about DataNode?

For detailed description follow: HDFS Introduction Tutorial

Q.13 Is the Secondary NameNode is the Backup node?

For detailed description follow: HDFS Architecture

Q.14 Which of the following is NOT a type of metadata in NameNode?

For detailed description follow: HDFS Architecture

Q.15 Which of following is the programming model designed for processing large volumes of data in parallel by dividing the work into a set of independent tasks.

For detailed description follow: MapReduce Introduction Tutorial

Q.16 Which of the following is not the phase of Reducer?

For detailed description follow: MapReduce Job Execution Flow

Q. 17 Mappers sorted output is Input to the-

For detailed description follow: MapReduce Job Execution Flow

Q.18 Which of the following generate intermediate key-value pair?

For detailed description follow: MapReduce Key-Value Pair

Q.19 What is the major advantages of storing data in block size 128MB?

For detailed description follow: HDFS Data Blocks

Q.20 Which of the following is Single point of Failure?

For detailed description follow: HDFS NameNode High Availability

If in case you have any confusion in these Big Data Hadoop Quiz Questions, so feel free to share with us. We will be glad to solve your queries.

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12 thoughts on “Big Data Hadoop Quiz Questions and Answers – Part 1

  • Amit Dass

    Hi Team ,

    Q.8 All the slaves in the Hadoop cluster should be of same configuration?

    Why answer is true ?
    Cant we use slaves of different configuration.

    • SreenivasulaReddy

      Yup, We can use machines with the different configuration, But it is the best practice to use homogeneous nodes in the cluster, as with the heterogeneous cluster there could be performance issues.

  • Mohit

    Good Knowledge sharing about Big Data Hadoop.
    Big Data Hadoop has a huge demand in IT Industry.

  • suraj

    Hi Team,

    There is a question
    “Mappers sorted output is input to”
    a)reducer b)shuffle c)mapper
    Since sorting happens both at mapper level(quick sort) and before giving it to reducer(merge sort)
    The answer might have been shuffle as it is immediate to mapper.
    But the answer is showing as reducer. Could you please let me know if this is correct.

  • Mahesh

    Q16 correct ans should be MAP cause suffle and sort only come into the picture when there is a reducer. can you explain why ans is not MAP.
    Q20 if we have seconday namenode then how namenode can we a single point of failure?

  • Rahul Dhaundiyal

    hi sir,
    i m f`fresher in Big data and done the certification in hadoop development.
    now m looking for some data sets to practice.
    can you help me in that.?

    • Data Flair

      Hi Kritika,
      Thank you for asking the query.
      So, you are searching for Hadoop jobs. We are very glad to help you with this.
      We regularly update new job posts for all technologies on the Data Flair Job Portal, you can directly check them on our website.
      Since you are preparing for Hadoop jobs, then you must know its future scope, salary and most important your interview preparation. Don’t worry! we can help you in preparing for the Hadoop Interview. We have published a blog for Hadoop Interview Preparation which will surely help you to crack the interview, check this –
      https://data-flair.training/blogs/top-100-hadoop-interview-questions-and-answers/

    • Data Flair

      Hellow Rangasamy,
      You can yourself count Hadoop Quiz score. When you attempt the quiz, you have to click on one of the checkboxes, if you click on the right one then it will show you green color that means you have +1 score and if it shows red it means your answer is wrong. In that case, you have to give -1. Also, you can check the links for a detailed understanding of Hadoop Concepts.
      Hope this helps.

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