I took a practice test for a CISSP exam and the question is:
You want to create multiple broadcast domains on your company's network. Which if the following devices would you install?
A. Router
B. Layer 2 Switch
C. Hub
D. Bridge
The answer given is A. Router and the rationale giving is that layer 2 switches cannot create broadcast domains. The CISSP book says the same thing. However, everything I've studied in networking suggests both A and B are true but you generally use a layer 2 switch to create broadcast domains and a layer 3 devices such as a router to route between them. I would think this would be doubly true in a security exam as using a layer 3 device as the only means to segment broadcasts would leave you more vulnerable to packet sniffers.
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