问题：
[单选题] Secure Shell (SSH) is a cryptographic network protocol for （ ） remote login and other secure network services over an（请作答此空）network.The standard（ ）port for SSH is 22. The best known example applicatio
A、secure
B、insecure
C、internet
D、internal
参考答案：
B、insecure
● 参考解析
