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