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Online Apache Hadoop YARN Assessment Test

Topics Covered

  • Unlinking packages in YARN
  • Creating packages with YARN
  • Installing packages with YARN
  • YARN basic aspects
  • YARN migration
  • Linking workspaces in YARN
  • Working with dependencies in YARN

Useful for hiring

  • Hadoop Developer - YARN
  • Big Data engineer - YARN
  • Big data analyst - YARN

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Question

Consider that in the development environment there are 2 directories: bootstrap and bootstrap-extensions.
The bootstrap directory linked within the bootstrap-extensions project.

Based on this, which of the following alternatives unlink the bootstrap package from the bootstrap-extensions package?

Answer
    • cd ../bootstrap-extensions
      yarn ln bootstrap --remove

    • cd ../bootstrap-extensions
      yarn unlink bootstrap

    • cd ../bootstrap-extensions
      yarn rm bootstrap

    • cd ../bootstrap-extensions
      yarn unlink bootstrap --remove-dep

Question

A new package called bootstrap-utils was created and uses the bootstrap and react-bootstrap dependencies. Which of the following options packs the bootstrap-utils package into a gzip file with all dependencies in the package?

Answer
    • yarn pack --filename /home/dev/yarn/packages/bootstrap-utils

    • yarn pack --filename /home/dev/yarn/packages/bootstrap-utils --compression gzip

    • yarn build --filename /home/dev/yarn/packages/bootstrap-utils -c gzip

    • yarn pack --file /home/dev/yarn/packages/bootstrap-utils --gzip

Question

The yarn install --flat command allows you to install only one version of each package. Based on this, what will be the output of the package.json file when this command is executed and the versions of react-bootstrap 0.32.1 and bootstrap 3.3.7 are selected?

Answer
    • "dependencies":
      {
        "bootstrap": "3.3.7",
        "react-bootstrap": "0.32.1"
      }

    • "dependencies-versions":
      {
        "bootstrap": "3.3.7",
        "react-bootstrap": "0.32.1"
      }

    • "modules":
      {
        "bootstrap": "3.3.7",
        "react-bootstrap": "0.32.1"
      }

    • "resolutions":
      {
        "bootstrap": "3.3.7",
        "react-bootstrap": "0.32.1"
      }

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