Which of the following is a passive device that cannot be detected by a wireless intrusion detection system (WIDS)?

Which of the following components are normally required to secure wireless 802.11 networks?
Each correct answer represents a complete solution. Choose all that apply.

The following numbered items show some of the contents of each of the four frames exchanged during the 4-way handshake.
1. Encrypted GTK sent
2. Confirmation of temporal key installation
3. ANonce sent from authenticator to supplicant
4. SNonce sent from supplicant to authenticator, MIC included
Arrange the frames in the correct sequence beginning with the start of the 4-way handshake.

Which of the following attacks are considered as authentication attacks? Each correct answer represents a complete solution. Choose all that apply.

The Marketing department's WLAN users need to reach their file and email server as well as the Internet, but should not have access to any other network resources. What single WLAN security feature should be implemented to comply with these requirements?