the following character encoding is used in a data link protocol: a: 01000111 b: 11100011 flag: 01111110 esc: 11100000 show the bit sequence transmitted (in binary) for the four-character frame a b esc flag flag when each of the following framing methods is used: (10points) (a) flag bytes with byte stuffing. (b) starting and ending flag bytes with bit stuffing.