Q: 1,2,4,8,16,32,64.....∞ these numbers comes in power of two (Formula: 2^x where x>=0) so the method should return true for such numbers otherwise it should return false Input: any no. Output: True/False Q: Original EMP Table: ID NAME DEP 1 abc N/W 2 def N/W 3 ghi S/W 4 jkl S/W Incremental Data: ID NAME DEP 1 abc S/W 5 mno N/W How will you find delta data and migrate it to EMP table. Q: Name~|Age~|Comment Df = spark.read.option(“delimiter”,”~|”).csv(“") Q. Type of dist key in Redshift? Q. Difference between wide and narrow transformation? Q. How broadcast join works? Q. How you do tunning in spark? Q. How partitioning works in spark? Q. Load() filter() map() filter() count() filter() collect() How many stage and job is there? Q. ​​ If we have input.csv, we need to find the output. File and desired output are given below. username, mobile user1,999999991:888888882 user3,777777771 user2,777777234:823232351 user5,734452343:943433434:834323434 user1,999999991:9994433777 output user1:3 user2:2 user3:1