What query do you use to find out what object has its blocks being shipped across the instance the most?

Even though the technical and operational questions are becoming more difficult, you should continue to answer them briefly and directly, using simple, easy-to-understand language. Continuity throughout the interview is important because it demonstrates your qualifications for the job. It also shows the interviewer that you remain calm in challenging situations and can communicate clearly, even to people with nontechnical backgrounds. These soft skills are just as important as your technical expertise and experience working as an Oracle RAC administrator.

"Knowing the various queries, commands, and other methodologies for determining the status of an Oracle RAC database and what errors have occurred is fundamental to this position. I pride myself on knowing the most common of these and being able to locate the more obscure commands and queries I may need. To find out what object has its blocks being shipped across the instance the most, I would use 'dba_hist_seg_stats'."