1st round
Totally based on current work.
NAND In SSD how it work. how it hold the voltage?
how request will come from host how it will be process by host layer / protocol layer/ application layer of SCSI.
how error handling will be done in Firmware of SSD ?
N to N flow of SSD firmware
How PCIe /SAS work?
2nd round-
based on C – static / global variable .
register / volatile,
bit operation along with how your solution will work.
bit set ?count no of bit set in a INT
MACRO,
write code for given problem — HackerRank Problem
normal logical puzzle