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10: Spark on Zeppelin – union, udf and explode

Pre-requisite: Docker is installed on your machine for Mac OS X (E.g. $ brew cask install docker) or Windows 10. Docker interview Q&As. This extends setting up Apache Zeppelin Notebook. Step 1: Pull this from the docker hub, and build the image with the following command.

You can verify…

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11: Spark on Zeppelin – Dataframe groupBy, collect_list, explode & window

Pre-requisite: Docker is installed on your machine for Mac OS X (E.g. $ brew cask install docker) or Windows 10. Docker interview Q&As. This extends setting up Apache Zeppelin Notebook. Step 1: Pull this from the docker hub, and build the image with the following command.

You can verify…

Read more ...


12: Spark on Zeppelin – Dataframe pivot

Pre-requisite: Docker is installed on your machine for Mac OS X (E.g. $ brew cask install docker) or Windows 10. Docker interview Q&As. This extends setting up Apache Zeppelin Notebook. Step 1: Pull this from the docker hub, and build the image with the following command.

You can verify…

Read more ...


13: Spark on Zeppelin – Dataframe date & timestamp

Pre-requisite: Docker is installed on your machine for Mac OS X (E.g. $ brew cask install docker) or Windows 10. Docker interview Q&As. This extends setting up Apache Zeppelin Notebook. Step 1: Pull this from the docker hub, and build the image with the following command.

You can verify…

Read more ...


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Java Developer & Architect Interview Q&As

Java & Big Data Tutorials

Prepare to fast-track & go places

FAQs are marked with 🔥 as some questions are not only more popular with the interviewers, but also required to build robust systems. If you are an interviewer, cover well rounded topics to judge real experience.

Don't be overwhelmed by the number of questions as the technology stacks are so vast. The quality of the answers you provide to some of the key technical & open-ended questions along with your soft skills & attitude will go a long way in getting the job offers.

Note: Some Q&As belong to more than one category.
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