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WithoutBook LIVE 模拟面试 Hadoop 相关面试主题: 74

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了解热门 Hadoop 面试题与答案，帮助应届生和有经验的候选人为求职面试做好准备。

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了解热门 Hadoop 面试题与答案，帮助应届生和有经验的候选人为求职面试做好准备。

面试题与答案

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中级 / 1 到 5 年经验级别面试题与答案

问题 1

What is the SequenceFileInputFormat in Hadoop?

In Hadoop, SequenceFileInputFormat is used to read files in sequence. It is a specific compressed binary file format which passes data between the output of one MapReduce job to the input of some other MapReduce job.

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问题 2

How many InputSplits is made by a Hadoop Framework?

Hadoop makes 5 splits as follows:

  • One split for 64K files
  • Two splits for 65MB files, and
  • Two splits for 127MB files
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问题 3

What is the use of RecordReader in Hadoop?

InputSplit is assigned with a work but doesn't know how to access it. The record holder class is totally responsible for loading the data from its source and convert it into keys pair suitable for reading by the Mapper. The RecordReader's instance can be defined by the Input Format.

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30 道题Ansible 面试题与答案共 30 道题ES6 面试题与答案共 30 道题Electron.js 面试题与答案共 24 道题RxJS 面试题与答案共 29 道题NodeJS 面试题与答案共 30 道题jQuery 面试题与答案共 22 道题Vue.js 面试题与答案共 30 道题ExtJS 面试题与答案共 50 道题Svelte.js 面试题与答案共 30 道题PII 面试题与答案共 30 道题Data Protection Act 面试题与答案共 20 道题BGP 面试题与答案共 30 道题Ethical Hacking 面试题与答案共 40 道题Cyber Security 面试题与答案共 50 道题Unix 面试题与答案共 105 道题Weblogic 面试题与答案共 30 道题Tomcat 面试题与答案共 16 道题Glassfish 面试题与答案共 8 道题Ubuntu 面试题与答案共 30 道题Linux 面试题与答案共 43 道题ETL Testing 面试题与答案共 20 道题QTP 面试题与答案共 44 道题Cucumber 面试题与答案共 30 道题Postman 面试题与答案共 30 道题TestNG 面试题与答案共 38 道题SDET 面试题与答案共 30 道题Selenium 面试题与答案共 40 道题Kali Linux 面试题与答案共 29 道题Mobile Testing 面试题与答案共 30 道题UiPath 面试题与答案共 38 道题Quality Assurance 面试题与答案共 56 道题API Testing 面试题与答案共 30 道题Appium 面试题与答案共 30 道题Web Developer 面试题与答案共 50 道题Angular 8 面试题与答案共 32 道题Angular JS 面试题与答案共 21 道题Dojo 面试题与答案共 23 道题Symfony 面试题与答案共 30 道题GWT 面试题与答案共 27 道题CSS 面试题与答案共 74 道题Ruby On Rails 面试题与答案共 74 道题Yii 面试题与答案共 30 道题Angular 面试题与答案共 50 道题PHP 面试题与答案共 27 道题Oracle JET(OJET) 面试题与答案共 54 道题Frontend Developer 面试题与答案共 30 道题Zend Framework 面试题与答案共 24 道题RichFaces 面试题与答案共 26 道题HTML 面试题与答案共 27 道题Flutter 面试题与答案共 25 道题CakePHP 面试题与答案共 30 道题React 面试题与答案共 40 道题React Native 面试题与答案共 26 道题
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