Click the Exhibit button.host_a is in subnet_a and host_b is in subnet_b.Given t
A. DNS traffic is denied.
B. Telnet traffic is denied.
C. SMTP traffic is denied.
D. Ping traffic is permitted.
正确答案：参考B, D
词条内容仅供参考，如果您需要解决具体问题
（尤其在法律、医学等领域），建议您咨询相关领域专业人士。