Question $20($Mandatory$)(2$ points$)$

A flip$-$flop which accepts inputs only when a trigger changes from HIGH to LOW is

positive edge$-$triggered.

negative edge$-$triggered.

negative level$-$triggered.

positive level$-$triggered.

Question $22($Mandatory$)(2$ points$)$

What is the binary representation of $2^4?$

$00010100$

$00001000$

$00010000$

$00010001$