I am Pramod Sripada, Masters Computer Science student at Indiana University Bloomington. I am also a Cloudera Certified Apache Spark and Hadoop Developer. I have given my CCA 175 exam recently on 7th November 2016. I have been getting many queries about the examination from a lot of exam takers, so I have decided that I share some tips which would be useful for future CCA 175 exam takers.
- Durga sir’s CCA playlist covers the syllabus adequately, if you have prepared it, then you will find the exam easy.
- For revision, if you feel that the playlist is too long, go through the private training playlist here: https://www.youtube.com/playlist?list=PLf0swTFhTI8rPoYMMZGs44FZX4qGbfjTu, which covers almost all the topics for the playlist but not in the level of depth as the original CCA playlist.
- I strongly recommend a final revision by going through CCA course on itversity website. It has lots of examples demonstrated and reading the text will help to revalidate your knowledge.
- Be strong with Hive and Sqoop basics, practice as many examples as possible in different scenarios.
- Evolve Avro schemas, by imagining hypothetical scenarios, and practice it till you are confident. Make sure you are aware of all the Avro data types and you can evolve the schema.
- Practice partitioning as mentioned in the syllabus, try partitioning with different columns and understand the nuances behind it.
- Spark consists of two sections with Scala and Python, the questions will be of a basic standard with filling in the blanks, but do practice all the questions in the playlist, it will give you the confidence to tackle simpler questions.
During the exam, I faced some issues and wasted almost around 30 minutes in my examination and panicked. Some tips for a smooth exam would be
- Please go through the videos towards the end of the CCA playlist that covers the common issues faced by exam takers, it is very important please don’t neglect it.
- Try to login into a Ubuntu machine and become familiar with how to use it.
- Learn on how to increase the font size of terminal (Go to preferences on the left top corner)
- Learn on how to run a .sh file, in case if you are not able to run it, you can open the file using vi editor and run each of the commands individually.
- Make sure you go through the question completely and then start coding, as the expected output might be different than what you thought.
- Validate the output, before moving to the next question helps if in the last minute you are not able to verify your answers.
- Set aside 15 minutes of time in the end and verify all your answers.
- If the time is over, don’t leave any unsaved files and quit the examination, save all files and then end the examination.
Hope the tips would help you in your certification journey. Thanks @itversity for such an amazing job.