21. Assign the proper even parity bit to the code 1100001.
(a) 11100001
(b) 1100001
(c) 01100001
(d) 01110101
22. Convert the binary number 1100 to Gray code.
(a) 0011
(b) 1010
(c) 1100
(d) 1001
23. Convert the Gray code 1011 to binary.
(a) 1011
(b) 1010
(c) 0100
(d) 1101
24. Hex 4B5258 is ________ in ASCII code.
(a) FGM
(b) KLM
(c) KRX
(d) JQW
25. A complete alphanumeric code would include 26 lowercase letters, 26 uppercase letters, 10 numeric digits, 7 punctuation marks, and anywhere from ________ to ________ other characters.
(a) 5, 10
(b) 10, 15
(c) 10, 20
(d) 20, 40
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