Deloitte | Big Data Engineer Interview Experience

In this article, we will see the list of questions asked in Deloitte Company Interview for 3+ year of experience candidate in big data field.

Let’s see the Questions:
1) Briefly Introduce YourSelf?
2) Difference between head() and take() in spark dataframe API?

Why Do We Need Bigdata Technology?

Why Big Data?

  • To process huge amounts of data which traditional systems (like your pc/ laptop) are not capable of processing.
  • To process huge amounts of data we need to store it first.
  • Example: Suppose we need to store 150 TBs of data, can our traditional system/ laptop which have 1 TB capacity store these huge amounts of data?  No Right.

How to prepare for Databricks Certified Associate Developer for Apache Spark Exam ?

In this post we will see the preparation strategy for Databricks Certified Associate Developer for Apache Spark Exam.
This certification exam assesses the understanding of the Spark DataFrame/SQL API and the ability to apply the Spark DataFrame/SQL API to complete basic data manipulation tasks within a Spark session.

This certification exam assesses the understanding of the Spark DataFrame/SQL API and the ability to apply the Spark DataFrame/SQL API to complete basic data manipulation tasks within a Spark session.