单选题小于（）的TCP/UDP端口号已保留与现有服务一一对应，此数字以上的端口号可自由分配。A199B100C1024D2048
单选题
小于（）的TCP/UDP端口号已保留与现有服务一一对应，此数字以上的端口号可自由分配。
A
199
B
100
C
1024
D
2048
参考解析
解析：
暂无解析
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