An example of an alphanumeric code is a. hexadecimal b. ASCII -11. c. BCD d. CRC 12. An example of an error detection method for transmitted data is the both of the above none of the above c. a. parity check b. CRC d. 13. When two positive signed numbers are added, the result may be larger that the size of the original numbers, creating overflow. This condition is indicated by a. a change in the sign bit b. a carry out of the sign position c. a zero result d. smoke 14. The truth table for a 2-input XOR gate is Inputs Output A B b. A B A B x' do 11 b. d. A 2-input gate produces the output shown. (Black lines are two input. RED represents the output.) This is a(n) 1S. a. OR gate b. NOR gate c. AND gate d. NAND gate 16. The expression X- AB means a. A OR B b. A AND B c. A XORB d. A XNOR B