- 搜標題
- 搜題干
- 搜選項
單項選擇題
哪些端口是well-knownport？（）
A.1–1023
B.1024 and above
C.1–256
D.1–65534
A.1–1023
B.1024 and above
C.1–256
D.1–65534
