We often call these “obscure details”. At the same level, these are a small subset of a large amount of details, so we can’t possibly remember them all 😦
Surprisingly, interviewers show certain patterns when picking which technicality to ask. Perhaps these “special” items aren’t at the same level as the thousands of other obscure details??
These topics are typical of QQ i.e. tough topics for IV only, not tough topics for GTD.
- archetypical: which socket syscalls are blocking and when
- hash table theoretical details? too theoretical to be part of this discussion
- select() syscall details
- vptr, vtable