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106年

第 19 題

2.5 分

爭議已解決：存在更明確的錯項，恢復自動批改。非官方答案。查看原始試卷

Which of the following about TCP/UDP port assignments is wrong?

a.HTTP uses port 80b.File Transfer Protocol (FTP) control uses port 21c.port numbers range from 0 to 65536d.port numbers 0~2048 are reserved for privileged services and designated as well-known portse.all of the above are correct (choose this only if none of the above can be chosen).