Hello there, May i know when the HDPCD Spark Certification expires? i mean the validity of this certification. Thanks. ... View more

Hello there, i've given HDPCD-Spark exam yesterday (i.e. 7th Feb'17) & now waiting for the results. My question is that: When can i expect the result & how? Will i get the printed hard-copy of the certificate, if passed? Thanks. ... View more

As we know that, due to restricted environment for HDPCD-Spark exam, can't download any 3rd party jars. And as we also know that, we can save/load DF to/from JSON/ORC/PARQUET file formats. However, there is an issue with CSV files. Hence, my question is that: How to save the DataFrame to a CSV file using pure Spark Core or Spark SQL APIs? & vice-a-versa. Thanks. ... View more

As we know that, there are 3 different ways to solve the tasks viz. using RDD, DF & SQL queries. Hence, my question here is that: can i solve the tasks as per my choice? OR the task itself as mention about which one of above 3 approaches to be used to solve it? Thanks. ... View more

I've learned that in HDPCD-Spark exam, all tasks have to be solved on spark-shell (or python shell). In this case, my queries are: 1) Do i need to save the source code somewhere? 2) If the above query's answer is YES, then, where & how to save the source code for each task? Thanks. ... View more

For every problem given, should i need to write an entire application in Scala/Python or is it sufficient to use spark-shell for writing statements. If the answer of this question is YES, then, how do I build that application? If maven is available then, do i need to write "pom.xml" from scratch or will it be readily available? If "SBT" is available them, do i need to write "build.sbt" file from scratch? ... View more