A company is planning to install a guest wireless network so visitors will be able to access the internet. The stakeholders want the network to be easy to connect to so time is not wasted during meetings. The WAPs are configured so that power levels and antennas cover only the conference rooms where visitors will attend meetings. Which of the following would best protect the company's internal wireless network against visitors accessing company resources?


A. Configure the guest wireless network to be on a separate VLAN from the company's internal wireless network.
B. Change the password for the guest wireless network every month.
C. Decrease the power levels of the access points for the guest wireless network.
D. Enable WPA2 using 802.1X for logging on to the guest wireless network.