多项选择题

A security analysis at The Potomac Canal Company recommends installing an IDS appliance anda firewall appliance. These appliances should connect directly into a Layer 3 switch. A loadbalancer and SSL termination have also been recommended.Potomac’s management haveexpressed concern over the cost. You suggest using integrated blades. What is one advantage and one disadvantage of yourdesign proposal？（）

A. The data center would need several devices to achieve its goal.
B. Increased usage of standalone devices is cost-effective.
C. Using integrated blades would only require two devices.
D. Putting all security devices in a single chassis provides a single point of failure.

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