Question $7$

Most operating systems use a byte stores the attributes of a file. In $8086,$ with the INT $21$h $/$ AH$=3$Ch combination, which can set the file attribute to "readonly"?

mov cx$,0$

mov cx$,1$

mov cx$,2$

mov cx$,4$

mov cx$,7$

Question $8$

In the $8086$ environments, with the INT $21$h $/$ AH$=3$Dh combination, which can open a file and set it for "write$-$only" processing?

mov al$,0$

mov al$,1$

mov al$,2$

mov al$,3$

mov al$,4$