列表
详情
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:
A
详细解析:
防火墙是专门设计的一种安全系统，旨在防止计算机网络之间的非授权通信。
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