In order to acquire credentials of a valid user on a public hotspot network, what attacks may be conducted? Choose thesingle completely correct answer.

The IEEE 802.11 Pairwise Transient Key (PTK) is derived from what cryptographic element?

ABC Company is an Internet Service Provider with thousands of customers. ABC’s customers are given login credentials for network access when they become a customer. ABC uses an LDAP server as the central user credential database. ABC is extending their service to existing customers in some public access areas and would like to use their existing database for authentication. How can ABC Company use their existing user database for wireless user authentication as they implement a large-scale WPA2-Enterprise WLAN security solution?