brother those are two different catageories
1) An interrupt can Non-Maskable and Maskable
every Maskable is either vectored or non-vectored
every Non-Maskable is either vectored or non-vectored
2) An interrupt can vectored and non-vectored
every vectored is either Maskable or Non-Maskable
every non-vectored is either Maskable or Non-Maskable
Mine was since nonmaskable interrupt are given to those events which are of extremely high priority which we cant ignore like power failure etc. So when that interrupt wil generate no other device will be serviced.
yes, Mine also same