$(2$ points total$)$ Give either a DFA or an NFA accepting the following languages over $=$

$\{0,1\}.$ Please state which kind you provided $($DFA or NFA$).$

a$.$ the set of strings with $001$ and$/$or $101$ as a substring

b$.\{$w $|$ w does NOT contain the substring $110\},$ HINT: try an NFA this time vs HW $1.$