Not Sure SRE/DevOps Engineer interview questions

It was very friendly first we had coding round and then teh and then managerial leading to HR have to be good with database, linux and data structures and Have you ever crashed your laptop/computer? How did you fix it? Problem statement: A file contains the names of other file names in this(a.txt, b.txt, c.txt, d.txt…….z.txt) format. Write a python or bash script to reverse the names in the file. Format of the reversed file is (txt.a, txt.b, txt.c, ………..txt.z). What is the difference between CPU and GPU? How will you set up your computer lab? What are the hardware and software required to do so? How will you troubleshoot if something goes in your computer lab?