台大研所備考 | 資管所 & 資工所

106年

第 11 題

2.5 分

答案已完成可重現的技術覆核；非官方答案。查看原始試卷

Which of the following is wrong?

a.In an odd parity system the total number of bit '1' in a word, including the added parity bit, is always an odd numberb.If the word (including parity bit) is 0110 1011 1, then in an odd parity system we can absolutely be sure that the word has an error insidec.if the word (including parity bit) is 0110 1001 0, then in an even parity system we can absolutely be sure that the word has no error insided.parity bit is used to detect errorse.all of the above are correct (choose this only if none of the above can be chosen).