Big thanks to Durga Sir and Itversity team, with their help and some external sources especially Arun’s blog spot, I was able to clear my certification. Many people have shared their tips, I would only emphasize on time-management and practice. write the code over and over even if it is repetitive, only then you will be able to avoid silly mistakes, which can cost you your certification. I would suggest you, to set a timer before solving sample problems.
I got 2 sqoop questions and 7 from spark, questions were easy but practice reading from different file formats and writing to it. The following link was very helpful in this regard:
I used the simulator from itversity to take a sample test, that helped me very much to understand where I am making mistakes and have corrected them.
All the best everyone!!