The multiplicative inverse of $15$ mod $19$ is:

Question $17$Answer

a$.$

$14$

b$.$

None of these options

c$.$

$9$

d$.$

$7$

e$.$

$1/15$Question $28$

Not jus answired Marked out of n$.00$

the fourth row of the output state matrix if the input state mutria to the Ats shitthows block is:

O$.$ none of these options

Question $16$

Not yet answered Marked out of $2\mathrm{.}00$

F Flag question

Given the following $s$ box of DES, if the input is $110101,$ the output is:

a$.1110$

b$.1011$

c$.0101$

$-$d$.1101$

Question $24$

Notyet amimered Marked out of $1\mathrm{.}00$

a$.$ none of these options

b$.0C_{635070}$

c$.$ OrCD $63.70$

O$.$d$.$ Ox$010690$ AD

e$.$ Ox $01059060$

$1$

$1$

Question $26$

the second row of the oupput stant matrix if the input staot matrix to the ABS shifthows blod is:

a none of these options b$.$

oc$.$

od$.$

oe$.$