問題文
A conference venue offers wireless access to attendees. A security review notes that an attendee's laptop can reach another attendee's laptop directly over the wireless network. Which control addresses that specific finding?
選択肢
- Requiring each attendee to authenticate with an individual credential, because an authenticated station is bound to a known identity and the access point can then apply a per-user policy that keeps stations in separate address ranges.
- Reducing the transmit power of the access points, so that two attendee laptops in the hall are rarely within range of one another.
- Using the newest wireless security generation, since encrypting each frame individually keeps one station from reading another's traffic.
- Preventing associated stations from reaching each other, so each client can only reach the upstream gateway.