Pay1 Software Developer interview questions

Resume selection technical interview In the technical interview they ask me sql queries in join and data structure in basic concepts of linked list ,stack , queue, quick sort and searching. and ask what is oops? and friend function oops concepts all of them and acess specifier they ask and linux concepts like which command find the character/word in file and syntax of it and python on how to concatenate the string and why we use python and various concepts of computer science they ask me. CTO round Final Selection