试题详情
- 单项选择题The cisco ironport portfolio performs which service?（）
A、reduces the downtime that is as assocoated with spam,viruses,and blended threats that are delivered via email
B、defends the penmeter from malicious users and unauthorized traffic
C、provides A secure communication path through the internet
D、determines if A user or device is authorized to access A switch port
- A
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