题目内容:
The ( ) is designed specifically as a security system for preventing unauthorized communications between one computer network and another computer network.
A.firewall
B.protocol
C.hacker
D.virus
参考答案:
答案解析:
The ( ) is designed specifically as a security system for preventing unauthorized communications between one computer network and another computer network.
A.firewall
B.protocol
C.hacker
D.virus