I did a bunch of those panels in my time. Imo if you read 2-3 books on unix/linux/networking and can complete this wargame in a couple evenings you’ll stand out quite a bit.
Other than that I was asked to implement a 'tail' command using my familiar language, and explain why deleting a file from disk doesn't free up the space.
Kirk McKusick's "FreeBSD Kernel Internals" course[1] was recommended to me, and it was excellent. But not cheap at $1495.
An SRE-SE requires a different skill set compared to SRE-SWE or SWE and the interview questions are different. If you have both skill sets, you effectively have two opportunities here :-)
